{"product_id":"automotive-circuit-relay-tester-12v-24v-electrical-diagnostic-power-probe-with-voltage-polarity-continuity-short-circuit-testing","title":"Automotive Circuit \u0026 Relay Tester – 12V\/24V Electrical Diagnostic Power Probe with Voltage, Polarity, Continuity \u0026 Short-Circuit Testing","description":"\u003cstyle\u003e\n\/* =========================================================\n   AUTOMOTIVE CIRCUIT \u0026 RELAY TESTER\n   12V\/24V • VOLTAGE • POLARITY • CONTINUITY • RELAY\n========================================================= *\/\n\n#auto-circuit-relay-page{\n  --bg:#121416;\n  --bg-soft:#191c1f;\n\n  --black:#090a0b;\n  --black2:#24282c;\n\n  --red:#e53b34;\n  --red2:#ff5b50;\n\n  --orange:#ef8a32;\n  --green:#48a86a;\n\n  --steel:#a8b0b5;\n  --steel2:#d6dadd;\n\n  --text:#f2f3f4;\n  --muted:#aeb5ba;\n\n  --line:rgba(255,255,255,.07);\n\n  width:100%;\n  max-width:1120px;\n\n  margin:0 auto;\n  padding:10px 18px 48px;\n\n  color:var(--text);\n\n  font-family:\n 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background-size:240% 100%;\n\n  -webkit-background-clip:text;\n  background-clip:text;\n\n  -webkit-text-fill-color:transparent;\n  color:transparent;\n\n  animation:ac-title-flow 15s linear infinite;\n}\n\n@keyframes ac-title-flow{\n  0%{\n    background-position:100% 50%;\n  }\n\n  100%{\n    background-position:-140% 50%;\n  }\n}\n\n\n\/* =========================================================\n   GRIDS\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-grid-2{\n  display:grid;\n  grid-template-columns:repeat(2,1fr);\n  gap:14px;\n  margin-top:31px;\n}\n\n#auto-circuit-relay-page .ac-grid-3{\n  display:grid;\n  grid-template-columns:repeat(3,1fr);\n  gap:13px;\n  margin-top:31px;\n}\n\n#auto-circuit-relay-page .ac-grid-4{\n  display:grid;\n  grid-template-columns:repeat(4,1fr);\n  gap:12px;\n  margin-top:31px;\n}\n\n\n\/* =========================================================\n   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text-align:center;\n}\n\n\n\/* =========================================================\n   HERO\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-hero{\n  padding:84px 42px 74px;\n\n  text-align:center;\n\n  background:\n    radial-gradient(\n      circle at 12% 15%,\n      rgba(229,59,52,.13),\n      transparent 27%\n    ),\n\n    radial-gradient(\n      circle at 88% 82%,\n      rgba(255,255,255,.04),\n      transparent 27%\n    ),\n\n    radial-gradient(\n      circle at 50% -12%,\n      rgba(229,59,52,.09),\n      transparent 30%\n    ),\n\n    var(--bg);\n}\n\n#auto-circuit-relay-page .ac-hero::before{\n  content:\"12V \/ 24V\";\n\n  left:20px;\n  bottom:8px;\n  top:auto;\n  right:auto;\n\n  color:rgba(229,59,52,.07);\n\n  font-size:44px;\n  font-weight:900;\n}\n\n#auto-circuit-relay-page .ac-hero::after{\n  content:\"⚡\";\n\n  right:28px;\n  top:10px;\n  left:auto;\n  bottom:auto;\n\n  width:auto;\n  height:auto;\n\n  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*\/\n\n#auto-circuit-relay-page .ac-number{\n  padding:29px 17px;\n\n  border:1px solid rgba(255,255,255,.07);\n  border-radius:18px;\n\n  background:rgba(255,255,255,.04);\n}\n\n#auto-circuit-relay-page .ac-number strong{\n  display:block;\n\n  margin-bottom:7px;\n\n  color:var(--red2);\n\n  font-size:28px;\n  line-height:1;\n}\n\n#auto-circuit-relay-page .ac-number span{\n  display:block;\n\n  color:#f0f2f3;\n\n  font-size:12px;\n  font-weight:800;\n}\n\n#auto-circuit-relay-page .ac-number p{\n  margin:7px 0 0;\n\n  color:var(--muted);\n\n  font-size:11px;\n}\n\n\n\/* =========================================================\n   STEPS\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-step{\n  padding:25px 15px;\n\n  border:1px solid rgba(255,255,255,.07);\n  border-radius:18px;\n\n  background:rgba(255,255,255,.04);\n}\n\n#auto-circuit-relay-page .ac-step-number{\n  display:flex;\n  align-items:center;\n  justify-content:center;\n\n  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color:var(--muted);\n\n  font-size:13px;\n  line-height:1.68;\n}\n\n\n\/* =========================================================\n   DETAILS\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-product-head{\n  margin-bottom:27px;\n\n  text-align:center;\n}\n\n#auto-circuit-relay-page .ac-product-head h2{\n  margin-bottom:6px;\n\n  font-size:33px;\n}\n\n#auto-circuit-relay-page .ac-product-card{\n  max-width:850px;\n  margin:0 auto;\n\n  padding:29px;\n\n  border:1px solid rgba(255,255,255,.07);\n  border-radius:19px;\n\n  background:rgba(255,255,255,.04);\n}\n\n#auto-circuit-relay-page .ac-row{\n  display:grid;\n  grid-template-columns:200px 1fr;\n\n  gap:15px;\n\n  padding:13px 0;\n\n  border-bottom:1px solid rgba(255,255,255,.065);\n\n  font-size:14px;\n}\n\n#auto-circuit-relay-page .ac-row:last-child{\n  border-bottom:0;\n}\n\n#auto-circuit-relay-page .ac-row strong{\n  color:#f0f2f3;\n}\n\n#auto-circuit-relay-page .ac-row span{\n  color:var(--muted);\n}\n\n\n\/* =========================================================\n   NOTE\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-note{\n  max-width:850px;\n  margin:22px auto 0;\n\n  padding:18px 20px;\n\n  border:1px solid rgba(229,59,52,.18);\n  border-radius:15px;\n\n  background:\n    linear-gradient(\n      90deg,\n      rgba(229,59,52,.07),\n      rgba(255,255,255,.025)\n    );\n\n  color:#abb2b6;\n\n  font-size:12px;\n  line-height:1.7;\n}\n\n\n\/* =========================================================\n   FINAL\n========================================================= *\/\n\n#auto-circuit-relay-page .ac-final{\n  padding:72px 30px;\n\n  text-align:center;\n\n  background:\n    radial-gradient(\n      circle at 12% 18%,\n      rgba(229,59,52,.12),\n      transparent 25%\n    ),\n\n    radial-gradient(\n      circle at 88% 82%,\n      rgba(255,255,255,.035),\n      transparent 26%\n    ),\n\n    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#auto-circuit-relay-page .ac-grid-3{\n    grid-template-columns:1fr;\n  }\n\n  #auto-circuit-relay-page .ac-grid-4{\n    grid-template-columns:1fr 1fr;\n  }\n\n  #auto-circuit-relay-page .ac-card,\n  #auto-circuit-relay-page .ac-number,\n  #auto-circuit-relay-page .ac-step,\n  #auto-circuit-relay-page .ac-compare{\n    padding:22px 16px;\n  }\n\n  #auto-circuit-relay-page .ac-product-card{\n    padding:21px 17px;\n  }\n\n  #auto-circuit-relay-page .ac-row{\n    grid-template-columns:1fr;\n    gap:3px;\n    padding:11px 0;\n  }\n\n  #auto-circuit-relay-page .ac-final{\n    padding:48px 18px;\n  }\n\n  #auto-circuit-relay-page .ac-final h2{\n    font-size:28px;\n  }\n\n  #auto-circuit-relay-page .ac-title,\n  #auto-circuit-relay-page .ac-hero h1,\n  #auto-circuit-relay-page .ac-product-head h2,\n  #auto-circuit-relay-page .ac-final h2{\n    animation-duration:10s;\n  }\n\n  #auto-circuit-relay-page .ac-section::before{\n    right:8px;\n    top:8px;\n\n    width:48px;\n    height:28px;\n\n    background-size:8px 8px;\n  }\n\n  #auto-circuit-relay-page .ac-section::after{\n    left:7px;\n    bottom:5px;\n\n    width:70px;\n    height:12px;\n  }\n\n}\n\u003c\/style\u003e\n\u003cdiv id=\"auto-circuit-relay-page\"\u003e\n\u003cdiv class=\"ac-shell\"\u003e\n\u003c!-- =====================================================\n         HERO\n    ====================================================== --\u003e\n\u003csection class=\"ac-section ac-hero\"\u003e\n\u003cdiv class=\"ac-hero-inner\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e 12V \/ 24V • Circuit Test • Relay Test • Power Probe \u003c\/span\u003e\n\u003ch1\u003eStop Guessing Which Wire, Fuse or Relay Failed.\u003c\/h1\u003e\n\u003cp\u003eElectrical problems can turn one broken light, horn or accessory into a long afternoon of tracing wires. This automotive diagnostic probe combines voltage testing, polarity identification, continuity checking, short-circuit diagnosis, relay testing and controlled positive \/ negative output in one handheld tool.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/1_73a76349-fd64-4579-a578-10bc7bb548ff.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"ac-badges\"\u003e\n\u003cspan class=\"ac-badge\"\u003e ⚡ DC Voltage Test \u003c\/span\u003e \u003cspan class=\"ac-badge\"\u003e ＋ \/ − Polarity Detection \u003c\/span\u003e \u003cspan class=\"ac-badge\"\u003e 🔊 Continuity Check \u003c\/span\u003e \u003cspan class=\"ac-badge\"\u003e 🔍 Short Circuit Diagnosis \u003c\/span\u003e \u003cspan class=\"ac-badge\"\u003e 🔁 4-Pin \/ 5-Pin Relay Test \u003c\/span\u003e \u003cspan class=\"ac-badge\"\u003e 🚗 12V \/ 24V Vehicle Systems \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         PAIN #1\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Automotive Electrical Faults Rarely Point to Themselves \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eA Dead Light Shouldn't Mean 30 Minutes of Swapping Between Four Different Test Tools.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe fuse looks fine. The relay clicks. The wire disappears into the harness. The connector has power — or maybe it doesn't. Electrical diagnosis gets slow when every new question sends you back to the toolbox for another tester.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/2_8b085161-8f1a-4d9c-a12e-7a5f5aa4add0.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔌\u003c\/div\u003e\n\u003cstrong\u003e Is Power Reaching the Circuit? \u003c\/strong\u003e\n\u003cp\u003eCheck whether voltage is present at the point you're testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e⏚\u003c\/div\u003e\n\u003cstrong\u003e Is the Ground Actually Good? \u003c\/strong\u003e\n\u003cp\u003eQuickly distinguish positive power from negative \/ ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔁\u003c\/div\u003e\n\u003cstrong\u003e Is the Relay the Problem? \u003c\/strong\u003e\n\u003cp\u003eTest compatible 4-pin and 5-pin automotive relays without a separate relay tester.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         ALL IN ONE\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e One Probe. Multiple Diagnostic Questions. \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eGo From “Something Isn't Working” to a More Focused Circuit Diagnosis.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe DW833 combines several common automotive electrical checks into one powered diagnostic probe. Instead of stopping after a basic voltage reading, you can continue checking polarity, continuity, short circuits, compatible relays and selected components from the same handheld platform.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/3_939fa27b-7a7d-446a-aa6f-d5884ae23c5d.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003eV\u003c\/div\u003e\n\u003cstrong\u003e Voltage Test \u003c\/strong\u003e\n\u003cp\u003eView real-time DC circuit voltage on the digital display.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e＋\u003c\/div\u003e\n\u003cstrong\u003e Polarity Test \u003c\/strong\u003e\n\u003cp\u003eIdentify positive and negative \/ ground with dedicated indicators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔊\u003c\/div\u003e\n\u003cstrong\u003e Continuity Test \u003c\/strong\u003e\n\u003cp\u003eCheck whether an electrical path remains continuous.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e⚡\u003c\/div\u003e\n\u003cstrong\u003e Short Circuit Check \u003c\/strong\u003e\n\u003cp\u003eSupport troubleshooting when a circuit may be shorted.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e💧\u003c\/div\u003e\n\u003cstrong\u003e Leakage Diagnosis \u003c\/strong\u003e\n\u003cp\u003eAdds another diagnostic mode for investigating abnormal electrical behavior.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e↔️\u003c\/div\u003e\n\u003cstrong\u003e Power Output \u003c\/strong\u003e\n\u003cp\u003eApply positive or negative output to appropriate circuits or components when required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         POLARITY\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Stop Squinting at Wires and Guessing the Polarity \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eRed Means Positive. Green Means Negative or Ground. No Light Means No Detected Voltage.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe dedicated indicator lights provide an immediate visual cue while the digital screen shows the circuit voltage. That makes routine checking faster when you're moving from fuse to connector to harness point.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/4_c99919f8-8eb4-4a13-b6db-59e5b8783880.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e＋\u003c\/div\u003e\n\u003cstrong\u003e Positive Detected \u003c\/strong\u003e\n\u003cp\u003eRed indicator illuminates when positive voltage is detected.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e−\u003c\/div\u003e\n\u003cstrong\u003e Negative \/ Ground \u003c\/strong\u003e\n\u003cp\u003eGreen indicator identifies negative or ground.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e○\u003c\/div\u003e\n\u003cstrong\u003e No Voltage \u003c\/strong\u003e\n\u003cp\u003eNo polarity indicator means no voltage is detected at that test point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         DIGITAL DISPLAY\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Know More Than “Power or No Power” \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eThe Digital Display Shows the Voltage Instead of Giving You Only a Yes-or-No Test Light.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eA basic test lamp can show that power exists, but it doesn't tell you the actual voltage value. The built-in digital display lets you see the detected DC voltage directly on the tester.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/5_b50a9a64-931e-4b2f-a67c-c534c4be5414.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e DC \u003c\/strong\u003e \u003cspan\u003e Circuit Measurement \u003c\/span\u003e\n\u003cp\u003eDesigned for low-voltage automotive DC electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 3.5–36V \u003c\/strong\u003e \u003cspan\u003e Listed Test Range \u003c\/span\u003e\n\u003cp\u003eCircuit testing voltage shown in the supplied product specification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e LED \u003c\/strong\u003e \u003cspan\u003e Polarity Indicators \u003c\/span\u003e\n\u003cp\u003eVisual positive and negative \/ ground identification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         FUSE\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e One of the Fastest Ways to Start a Dead-Circuit Diagnosis \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eCheck Both Sides of a Fuse Before Pulling Half the Fuse Box Apart.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eTouch the probe to the accessible test points on a compatible automotive fuse. If power is present on both sides, current is reaching both fuse contacts. Power on only one side can indicate an open fuse or another circuit condition that needs further diagnosis.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/7_2076215e-4aca-4a7d-a53b-9b0fa71a6181.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e1\u003c\/div\u003e\n\u003cstrong\u003e Probe the First Side \u003c\/strong\u003e\n\u003cp\u003eCheck one exposed fuse test contact for voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e2\u003c\/div\u003e\n\u003cstrong\u003e Probe the Second Side \u003c\/strong\u003e\n\u003cp\u003eCompare the reading at the opposite test contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e✓\u003c\/div\u003e\n\u003cstrong\u003e Compare Results \u003c\/strong\u003e\n\u003cp\u003eUse both readings as part of the fuse and circuit diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         RELAY PAIN\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e A Relay Can Click and Still Leave You Wondering \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eTest Compatible 4-Pin and 5-Pin Relays Without Building a Jumper-Wire Setup on the Bench.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe built-in relay section supports standard compatible 4-pin and 5-pin automotive relays. Select the corresponding mode, connect the relay in the correct position and use the tester to evaluate its switching behavior.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/8_4bf38ee7-9367-417c-986f-52a210caca6f.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e4\u003c\/div\u003e\n\u003cstrong\u003e 4-Pin Relay Mode \u003c\/strong\u003e\n\u003cp\u003eDedicated selection for compatible standard 4-pin relays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e5\u003c\/div\u003e\n\u003cstrong\u003e 5-Pin Relay Mode \u003c\/strong\u003e\n\u003cp\u003eSwitch modes for compatible standard 5-pin relays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔊\u003c\/div\u003e\n\u003cstrong\u003e Switching Feedback \u003c\/strong\u003e\n\u003cp\u003eAudible relay operation and indicator feedback help with diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         POWER OUTPUT\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Sometimes You Need to Know Whether the Circuit Failed — or the Component Did \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003ePositive and Negative Output Lets You Test Appropriate Low-Voltage Components More Directly.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe output switch allows the probe to provide positive or negative output for suitable 12V \/ 24V low-voltage testing tasks. Used correctly, this can help determine whether a compatible component responds when supplied directly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e＋\u003c\/div\u003e\n\u003cstrong\u003e Positive Output \u003c\/strong\u003e\n\u003cp\u003eSupply positive power to an appropriate low-voltage test point when required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e−\u003c\/div\u003e\n\u003cstrong\u003e Negative Output \u003c\/strong\u003e\n\u003cp\u003eApply negative \/ ground where the test procedure specifically requires it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔍\u003c\/div\u003e\n\u003cstrong\u003e Component Isolation \u003c\/strong\u003e\n\u003cp\u003eHelps separate a component problem from a wiring or supply problem.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         SAFETY NOTE FOR OUTPUT\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Power Injection Is Useful — But Only on the Right Circuit \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eConfirm the Circuit Before Applying Positive or Negative Output.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe output function should only be used on circuits and components known to accept the selected vehicle voltage. Do not blindly inject power into control modules, sensors, communication lines or safety-related electronics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e⚠️\u003c\/div\u003e\n\u003cstrong\u003e Identify the Circuit First \u003c\/strong\u003e\n\u003cp\u003eKnow what the wire or terminal controls before applying output.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🧠\u003c\/div\u003e\n\u003cstrong\u003e Avoid Sensitive Modules \u003c\/strong\u003e\n\u003cp\u003eDo not apply power directly to ECU, airbag, CAN or sensor circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e📘\u003c\/div\u003e\n\u003cstrong\u003e Follow the Wiring Diagram \u003c\/strong\u003e\n\u003cp\u003eUse vehicle service information whenever circuit identity or expected voltage is uncertain.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         CONTINUITY\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Power at One End Doesn't Mean the Wire Is Good All the Way Through \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eUse Continuity Testing to Check Whether the Electrical Path Is Still Connected.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eBroken wires, damaged connectors and poor connections can interrupt a circuit even when the harness looks fine from the outside. Continuity testing helps you determine whether the electrical path remains intact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e〰️\u003c\/div\u003e\n\u003cstrong\u003e Harness Checks \u003c\/strong\u003e\n\u003cp\u003eInvestigate continuity through compatible wires and harness sections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔌\u003c\/div\u003e\n\u003cstrong\u003e Connector Checks \u003c\/strong\u003e\n\u003cp\u003eCheck selected low-voltage connections during circuit diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔔\u003c\/div\u003e\n\u003cstrong\u003e Audible Feedback \u003c\/strong\u003e\n\u003cp\u003eSound feedback makes continuity checks easier without constantly watching the display.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         SHORT CIRCUIT\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Replacing the Same Fuse Twice Isn't a Repair \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eIf a Fuse Keeps Blowing, the Next Question Is Where the Circuit Is Shorting.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eShorts can come from damaged insulation, pinched wires, incorrect repairs or failed components. The tester includes short-circuit diagnostic functions to help narrow down low-voltage automotive electrical faults.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/6_a88e0206-7b80-4ea2-85d4-cd0a0c93e507.png?v=1791364228\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e⚡\u003c\/div\u003e\n\u003cstrong\u003e Blown Fuse Problems \u003c\/strong\u003e\n\u003cp\u003eUse circuit testing to investigate repeated fuse failure instead of only replacing it.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔍\u003c\/div\u003e\n\u003cstrong\u003e Damaged Wiring \u003c\/strong\u003e\n\u003cp\u003eHelp narrow diagnosis toward pinched, rubbed or compromised wiring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🛠️\u003c\/div\u003e\n\u003cstrong\u003e Repair Verification \u003c\/strong\u003e\n\u003cp\u003eRe-check the circuit after a repair before considering the job finished.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         12 \/ 24V\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e One Tester for More Than Passenger Cars \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eWorks Across Common 12V and 24V Vehicle Electrical Systems.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eThe tester is designed for low-voltage automotive systems including common 12V passenger vehicles and compatible 24V commercial or work vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-4\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🚗\u003c\/div\u003e\n\u003cstrong\u003e Cars \u003c\/strong\u003e\n\u003cp\u003eDiagnose common 12V vehicle electrical circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🚐\u003c\/div\u003e\n\u003cstrong\u003e Vans \u003c\/strong\u003e\n\u003cp\u003eUseful for low-voltage electrical troubleshooting and repair.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🚚\u003c\/div\u003e\n\u003cstrong\u003e Trucks \u003c\/strong\u003e\n\u003cp\u003eSupports compatible 12V and 24V truck electrical systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🏗️\u003c\/div\u003e\n\u003cstrong\u003e Work Machinery \u003c\/strong\u003e\n\u003cp\u003eSuitable for compatible low-voltage circuits on engineering machinery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         CABLE\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Electrical Faults Rarely Happen Right Next to the Battery \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eThe Long Battery Lead Lets You Reach Around Larger Vehicles Without Constantly Moving the Power Connection.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eBattery clamps provide the tester's power source, while the long cable gives you room to move around the engine bay, cabin and other accessible low-voltage test points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 17.7 ft \u003c\/strong\u003e \u003cspan\u003e Approx. Cable Length \u003c\/span\u003e\n\u003cp\u003eLong reach for moving around larger vehicles and work areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 2 \u003c\/strong\u003e \u003cspan\u003e Battery Clamps \u003c\/span\u003e\n\u003cp\u003eRed and black battery clamps provide operating power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 1 \u003c\/strong\u003e \u003cspan\u003e Handheld Probe \u003c\/span\u003e\n\u003cp\u003eKeep the main testing controls in your hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         WORK LIGHT\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Wiring Problems Have a Habit of Hiding in the Darkest Part of the Vehicle \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eBuilt-In Illumination Helps You See the Connector Before You Touch the Probe to It.\u003c\/h2\u003e\n\u003cp class=\"ac-copy\"\u003eIntegrated light near the probe area adds visibility when working around fuse boxes, wiring harnesses and darker areas of the vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-3\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e💡\u003c\/div\u003e\n\u003cstrong\u003e Probe Illumination \u003c\/strong\u003e\n\u003cp\u003eAdds light near the testing area while you work.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🌙\u003c\/div\u003e\n\u003cstrong\u003e Dark Engine Bays \u003c\/strong\u003e\n\u003cp\u003eUseful around shadowed connectors and harness routing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔎\u003c\/div\u003e\n\u003cstrong\u003e More Precise Contact \u003c\/strong\u003e\n\u003cp\u003eBetter visibility helps you place the probe on the intended point.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         SCENARIOS\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Start With the Symptom. Work Back Through the Circuit. \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eUseful for the Electrical Problems That Turn Simple Repairs Into Guesswork.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-4\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e💡\u003c\/div\u003e\n\u003cstrong\u003e Lighting Faults \u003c\/strong\u003e\n\u003cp\u003eCheck power, ground and circuit continuity around compatible lighting systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e📢\u003c\/div\u003e\n\u003cstrong\u003e Horn Circuits \u003c\/strong\u003e\n\u003cp\u003eHelp isolate fuse, relay, wiring or component-side problems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔋\u003c\/div\u003e\n\u003cstrong\u003e Fuse Panels \u003c\/strong\u003e\n\u003cp\u003eQuickly compare voltage across compatible fuse test points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔁\u003c\/div\u003e\n\u003cstrong\u003e Relay Circuits \u003c\/strong\u003e\n\u003cp\u003eTest compatible 4-pin and 5-pin automotive relays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         HOW TO START\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e From Battery Connection to First Test Point \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eConnect the Clamps, Identify the Circuit and Start Testing.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-4\"\u003e\n\u003cdiv class=\"ac-step\"\u003e\n\u003cdiv class=\"ac-step-number\"\u003e1\u003c\/div\u003e\n\u003cstrong\u003e Connect to Battery \u003c\/strong\u003e\n\u003cp\u003eAttach the red and black clamps to the correct battery terminals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-step\"\u003e\n\u003cdiv class=\"ac-step-number\"\u003e2\u003c\/div\u003e\n\u003cstrong\u003e Identify the Circuit \u003c\/strong\u003e\n\u003cp\u003eConfirm the expected circuit voltage, polarity and component.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-step\"\u003e\n\u003cdiv class=\"ac-step-number\"\u003e3\u003c\/div\u003e\n\u003cstrong\u003e Touch the Test Point \u003c\/strong\u003e\n\u003cp\u003ePlace the probe carefully on the intended electrical contact.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-step\"\u003e\n\u003cdiv class=\"ac-step-number\"\u003e4\u003c\/div\u003e\n\u003cstrong\u003e Read the Result \u003c\/strong\u003e\n\u003cp\u003eUse the voltage display, indicator lights and test mode to continue diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         COMPARISON\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Less Tool Switching. Faster Diagnostic Flow. \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eKeep More of the Electrical Troubleshooting Process in One Handheld Tool.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-2\"\u003e\n\u003cdiv class=\"ac-compare\"\u003e\n\u003cstrong\u003e Traditional Multi-Tool Workflow \u003c\/strong\u003e\n\u003cul class=\"ac-list\"\u003e\n\u003cli\u003eMultimeter for voltage measurement\u003c\/li\u003e\n\u003cli\u003eTest light for quick power checks\u003c\/li\u003e\n\u003cli\u003eSeparate continuity testing setup\u003c\/li\u003e\n\u003cli\u003eJumper wires for selected component checks\u003c\/li\u003e\n\u003cli\u003eSeparate relay testing procedure\u003c\/li\u003e\n\u003cli\u003eMore time changing tools and connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-compare\"\u003e\n\u003cstrong\u003e DW833 Diagnostic Probe \u003c\/strong\u003e\n\u003cul class=\"ac-list\"\u003e\n\u003cli\u003eDigital DC voltage display\u003c\/li\u003e\n\u003cli\u003ePositive \/ negative indicator lights\u003c\/li\u003e\n\u003cli\u003eContinuity testing\u003c\/li\u003e\n\u003cli\u003eShort-circuit diagnostic functions\u003c\/li\u003e\n\u003cli\u003ePositive \/ negative output\u003c\/li\u003e\n\u003cli\u003eBuilt-in compatible 4-pin \/ 5-pin relay testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         WHO IT IS FOR\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Built for Anyone Who Diagnoses More Than They Guess \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eUseful in the Repair Shop, Garage, Fleet or DIY Toolbox.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-4\"\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🔧\u003c\/div\u003e\n\u003cstrong\u003e Mechanics \u003c\/strong\u003e\n\u003cp\u003eKeep common low-voltage circuit checks close at hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🏪\u003c\/div\u003e\n\u003cstrong\u003e Repair Shops \u003c\/strong\u003e\n\u003cp\u003eUseful for routine automotive electrical troubleshooting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🚚\u003c\/div\u003e\n\u003cstrong\u003e Fleet Maintenance \u003c\/strong\u003e\n\u003cp\u003eSupport diagnosis across compatible 12V and 24V vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-card\"\u003e\n\u003cdiv class=\"ac-icon\"\u003e🏠\u003c\/div\u003e\n\u003cstrong\u003e DIY Car Owners \u003c\/strong\u003e\n\u003cp\u003eA practical tool for experienced owners troubleshooting low-voltage circuits.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         DIMENSIONS\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Handheld Body With Long-Reach Leads \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eCompact Enough for the Toolbox, Long Enough to Reach Around the Vehicle.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-grid-4\"\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 10.2 in \u003c\/strong\u003e \u003cspan\u003e Approx. Tester Length \u003c\/span\u003e\n\u003cp\u003eOverall length shown in the supplied product dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 2.7 in \u003c\/strong\u003e \u003cspan\u003e Approx. Probe Section \u003c\/span\u003e\n\u003cp\u003eExtended metal probe section for test-point access.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 17.7 ft \u003c\/strong\u003e \u003cspan\u003e Approx. Main Cable \u003c\/span\u003e\n\u003cp\u003eLong cable reach around larger vehicle work areas.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-number\"\u003e\n\u003cstrong\u003e 1.9 in \u003c\/strong\u003e \u003cspan\u003e Auxiliary Probe \u003c\/span\u003e\n\u003cp\u003eApproximate accessory probe length shown in the image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         FAQ\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-center\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Frequently Asked Questions \u003c\/span\u003e\n\u003ch2 class=\"ac-title\"\u003eWhat to Know Before You Start Probing Vehicle Circuits.\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq\"\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e What vehicles does it work with? \u003c\/strong\u003e\n\u003cp\u003eIt is designed for compatible 12V and 24V low-voltage vehicle electrical systems, including cars, vans, trucks, buses and some engineering machinery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e What voltage range can it test? \u003c\/strong\u003e\n\u003cp\u003eThe supplied specification lists a circuit testing range of DC 3.5V–36V.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can it identify positive and ground? \u003c\/strong\u003e\n\u003cp\u003eYes. The product uses a red positive indicator and green negative \/ ground indicator, while the display shows detected voltage.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can it test continuity? \u003c\/strong\u003e\n\u003cp\u003eYes. Continuity testing is one of the listed diagnostic functions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can it test relays? \u003c\/strong\u003e\n\u003cp\u003eYes. It includes support for compatible standard 4-pin and 5-pin automotive relays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can it test fuses? \u003c\/strong\u003e\n\u003cp\u003eYes. The probe can be used on accessible automotive fuse test points to compare power on both sides as part of fuse diagnosis.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can the probe supply power? \u003c\/strong\u003e\n\u003cp\u003eThe tester includes positive and negative output functions for appropriate low-voltage diagnostic tasks. Always identify the circuit and verify that direct power is safe before using this function.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can I use it on hybrid or EV high-voltage systems? \u003c\/strong\u003e\n\u003cp\u003eNo. This tester is intended for low-voltage automotive DC circuits only. Do not use it on hybrid or electric-vehicle high-voltage traction systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e Can I apply power directly to sensors or control modules? \u003c\/strong\u003e\n\u003cp\u003eDo not do so unless the vehicle's service information specifically confirms that the circuit can accept direct power. Improper power injection can damage sensitive electronics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-faq-item\"\u003e\n\u003cstrong\u003e What operating temperature is listed? \u003c\/strong\u003e\n\u003cp\u003eThe supplied product specification lists an operating environment of approximately -20°C to +55°C.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         PRODUCT DETAILS\n    ====================================================== --\u003e\n\u003csection class=\"ac-section\"\u003e\n\u003cdiv class=\"ac-product-head\"\u003e\n\u003cspan class=\"ac-kicker\"\u003e Product Details \u003c\/span\u003e\n\u003ch2\u003eAutomotive Circuit \u0026amp; Relay Diagnostic Tester\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-product-card\"\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eModel\u003c\/strong\u003e \u003cspan\u003e DW833 \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eProduct Type\u003c\/strong\u003e \u003cspan\u003e Automotive Electrical Circuit \u0026amp; Relay Tester \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eVehicle Systems\u003c\/strong\u003e \u003cspan\u003e Compatible 12V \/ 24V Low-Voltage Vehicle Electrical Systems \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eCircuit Test Range\u003c\/strong\u003e \u003cspan\u003e DC 3.5V–36V \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eVoltage Display\u003c\/strong\u003e \u003cspan\u003e Digital Real-Time Voltage Display \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003ePolarity Indicators\u003c\/strong\u003e \u003cspan\u003e Red = Positive • Green = Negative \/ Ground \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eMain Functions\u003c\/strong\u003e \u003cspan\u003e Voltage, Polarity, Continuity, Short-Circuit \u0026amp; Leakage Diagnosis \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eOutput Function\u003c\/strong\u003e \u003cspan\u003e Positive \/ Negative Output for Appropriate Low-Voltage Testing \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eRelay Support\u003c\/strong\u003e \u003cspan\u003e Compatible Standard 4-Pin \u0026amp; 5-Pin Automotive Relays \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003ePower Connection\u003c\/strong\u003e \u003cspan\u003e Vehicle Battery Clamps \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eApprox. Cable Length\u003c\/strong\u003e \u003cspan\u003e 17.7 ft \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eAdditional Feature\u003c\/strong\u003e \u003cspan\u003e Built-In Probe Illumination \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e \u003cspan\u003e Approx. -20°C to +55°C \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-row\"\u003e\n\u003cstrong\u003eBest For\u003c\/strong\u003e \u003cspan\u003e Automotive Circuit Diagnosis, Fuse Checks, Relay Testing, Wiring Troubleshooting \u0026amp; Low-Voltage Electrical Repair \u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ac-note\"\u003eDesigned for low-voltage automotive DC diagnostics only. Do not use on household AC mains, hybrid \/ EV high-voltage traction systems, ignition secondary high voltage or any circuit beyond the tester's rated range. Before using the positive \/ negative output function, identify the circuit and confirm that direct power application is permitted. Never inject power blindly into ECUs, sensors, airbag \/ SRS circuits, communication lines or other sensitive electronic modules. Follow the vehicle manufacturer's service information whenever circuit function is uncertain.\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- =====================================================\n         FINAL\n    ====================================================== --\u003e\n\u003csection class=\"ac-section ac-final\"\u003e\u003cspan class=\"ac-kicker\"\u003e Probe • Read • Trace • Test \u003c\/span\u003e\n\u003ch2\u003eSpend Less Time Guessing What Failed — and More Time Testing the Circuit That Actually Matters.\u003c\/h2\u003e\n\u003cp\u003eConnect to the battery. Check the fuse. identify power and ground. Read the voltage. test continuity. verify the relay. Then continue through the circuit instead of replacing parts until the problem disappears.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"XCC","offers":[{"title":"Default Title","offer_id":44422255738967,"sku":"NC035526100711164-红色","price":44.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/5473\/7239\/files\/1_73a76349-fd64-4579-a578-10bc7bb548ff.png?v=1791364228","url":"https:\/\/mycheesemas.com\/products\/automotive-circuit-relay-tester-12v-24v-electrical-diagnostic-power-probe-with-voltage-polarity-continuity-short-circuit-testing","provider":"mycheesemas","version":"1.0","type":"link"}