{"product_id":"auto-circuit-tester-probe-pen-dc-12v-24v-led-voltage-tester","title":"Auto Circuit Tester Probe Pen – DC 12V 24V LED Voltage Tester","description":"\n\u003ch2\u003eAuto Circuit Tester Diagnostic Probe Pen – DC 12V \u0026amp; 24V\u003c\/h2\u003e\n\u003cp\u003eTake the guesswork out of automotive electrical diagnostics with this professional-grade \u003cstrong\u003eAuto Circuit Tester Probe Pen\u003c\/strong\u003e. Designed for cars, trucks, and most 12V\/24V DC vehicles, this compact test pen makes it fast and easy to check voltage, current, and resistance in any automotive circuit — so you can pinpoint electrical issues and get back on the road with confidence.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Voltage Compatibility:\u003c\/strong\u003e Works seamlessly with both 12V and 24V DC systems, making it suitable for passenger cars, trucks, vans, and light commercial vehicles.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Digital Voltage Display:\u003c\/strong\u003e A bright, easy-to-read LED display shows your readings clearly, even in low-light environments like under a hood or beneath a dashboard.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBidirectional Current \u0026amp; Voltage Testing:\u003c\/strong\u003e Ground the alligator clip to the negative terminal and probe the positive with the pen tip — the \u003cstrong\u003egreen LED\u003c\/strong\u003e illuminates. Reverse the setup to probe the negative terminal — the \u003cstrong\u003ered LED\u003c\/strong\u003e activates. Instant visual polarity confirmation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty ABS Shell:\u003c\/strong\u003e The high-hardness ABS insulated housing provides excellent durability and electrical safety. Premium-quality clamp body and screws ensure long-lasting use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReinforced, Flexible Test Wire:\u003c\/strong\u003e Thickened test leads are flexible and easy to route into tight spaces. A spring-protected wire opening prevents sheath damage and maintains safe, reliable connections over time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e Suitable for diagnosing and troubleshooting the electrical systems of most automobiles, helping you efficiently identify faults and resolve issues safely.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e DC 12V \/ 24V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisplay:\u003c\/strong\u003e LED Digital\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Material:\u003c\/strong\u003e High-hardness ABS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBatteries Required:\u003c\/strong\u003e No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMade in:\u003c\/strong\u003e Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Car Circuit Tester Probe Pen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eLearn More About Vehicle Electrical Safety\u003c\/h3\u003e\n\u003cp\u003eFor guidance on safe automotive electrical system inspection and best practices, visit the OSHA Automotive Safety Resource. Proper testing tools like this probe pen are essential for safely diagnosing vehicle circuit issues.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-art-print\"\u003e\"1% Better Every Day\" Motivational Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/everything-is-fine-trust-government-mens-graphic-t-shirt-cotton\"\u003e\"Everything Is Fine\" Funny Men's Graphic T-Shirt | Cotton Tee\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Pico_Technology\" target=\"_blank\" rel=\"noopener\"\u003ePico Technology\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this auto circuit tester compatible with both 12V and 24V vehicles?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! This circuit tester probe pen is fully compatible with DC 12V and 24V electrical systems, covering the vast majority of passenger cars, trucks, and light commercial vehicles.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Do I need batteries to use this circuit tester pen?\u003c\/h4\u003e\n\u003cp\u003eA: No batteries are required. The tester draws power directly from the vehicle's electrical circuit being tested, so it's always ready to use straight out of the box.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How do I read the polarity using the LED display?\u003c\/h4\u003e\n\u003cp\u003eA: It's simple — when the alligator clip is grounded to the negative terminal and the pen tip touches the positive terminal, the green LED lights up. When testing the negative terminal with the pen tip while the clip holds the positive, the red LED illuminates. This gives you instant, clear polarity feedback.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this probe pen safe to use for non-professionals?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The high-hardness ABS insulated housing, spring-protected wire opening, and reinforced test leads are all designed with user safety in mind, making it accessible for both DIY enthusiasts and professional mechanics. Always follow standard electrical safety practices when working on vehicle circuits.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this auto circuit tester compatible with both 12V and 24V vehicles?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! This circuit tester probe pen is fully compatible with DC 12V and 24V electrical systems, covering the vast majority of passenger cars, trucks, and light commercial vehicles.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need batteries to use this circuit tester pen?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No batteries are required. The tester draws power directly from the vehicle's electrical circuit being tested, so it's always ready to use straight out of the box.\"}}, {\"@type\": \"Question\", \"name\": \"How do I read the polarity using the LED display?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It's simple — when the alligator clip is grounded to the negative terminal and the pen tip touches the positive terminal, the green LED lights up. When testing the negative terminal with the pen tip while the clip holds the positive, the red LED illuminates. This gives you instant, clear polarity feedback.\"}}, {\"@type\": \"Question\", \"name\": \"Is this probe pen safe to use for non-professionals?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The high-hardness ABS insulated housing, spring-protected wire opening, and reinforced test leads are all designed with user safety in mind, making it accessible for both DIY enthusiasts and professional mechanics. Always follow standard electrical safety practices when working on vehicle circuits.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Diagnostic \u0026 Programming Tools\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/collections\/diagnostic-programming-tools\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Auto Circuit Tester Probe Pen – DC 12V 24V LED Voltage Tester\", \"item\": \"https:\/\/vd0uzy-jp.myshopify.com\/products\/auto-circuit-tester-probe-pen-dc-12v-24v-led-voltage-tester\"}]}\u003c\/script\u003e","brand":"Peaceful Pleasures Health and Wellness","offers":[{"title":"Black","offer_id":53667238641977,"sku":"1005011760680857-Black","price":16.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/3689\/5801\/files\/Sab423e32d77a4e12bb1a4a8a78c4f7ffX.webp?v=1783011171","url":"https:\/\/peacefulpleasureswellness.com\/products\/auto-circuit-tester-probe-pen-dc-12v-24v-led-voltage-tester","provider":"Peaceful Pleasures Health and Wellness","version":"1.0","type":"link"}