{"product_id":"digital-voltage-circuit-tester-pen-car-truck-6v-72v","title":"Digital Voltage Circuit Tester Pen for Car \u0026 Truck 6V–72V","description":"\n\u003ch2\u003eDigital Voltage Circuit Tester Pen – Works on Cars, Trucks \u0026amp; More\u003c\/h2\u003e\n\u003cp\u003eTackle automotive electrical diagnostics with confidence using this professional-grade \u003cstrong\u003eDigital Voltage Circuit Tester Pen\u003c\/strong\u003e. Designed for cars, trucks, and a wide range of vehicles, this compact test pen measures voltage up to \u003cstrong\u003e72V\u003c\/strong\u003e and displays readings instantly on a clear LED digital screen — no guesswork, no fumbling. Whether you're checking headlights, taillights, turn signals, fuse connections, or faulty sockets, this tool gives you fast, accurate results right at your fingertips.\u003c\/p\u003e\n\n\u003cp\u003eMade in Mainland China.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Digital Display:\u003c\/strong\u003e Bi-directional voltage testing with polarity indication — red LED for positive, green LED for negative — so you always know what you're working with.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Measures from 6V up to 72V, covering standard 6V, 12V, and 24V vehicle systems with ease.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Build Quality:\u003c\/strong\u003e ABS high-hardness insulation shell, chrome-plated alligator clips, ultra-tip test probe, and a thick spring test line for lasting durability.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy to Use:\u003c\/strong\u003e Simply connect the alligator clip to either the positive or negative pole — the tester identifies polarity automatically. The long PU spring wire adds flexible reach for tight spaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact \u0026amp; Lightweight:\u003c\/strong\u003e At just 190mm long and 78g, this pen is easy to store in a glove box or tool bag and ready whenever you need it.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Battery Required:\u003c\/strong\u003e Draws power directly from the circuit being tested — nothing extra to buy or charge.\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 6V – 72V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 190mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 78g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Material:\u003c\/strong\u003e ABS High-Hardness Insulation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBattery:\u003c\/strong\u003e Not required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eChecking automotive headlights, taillights \u0026amp; turn signal circuits\u003c\/li\u003e\n  \u003cli\u003eTesting fuse connections and faulty sockets\u003c\/li\u003e\n  \u003cli\u003eDiagnosing vehicle electrical systems on cars, trucks, vans \u0026amp; more\u003c\/li\u003e\n  \u003cli\u003eDIY mechanics and professional automotive technicians\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated Tools You May Also Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-multi-use-faucet-bubbler-wrenches-6-sizes-sink-wrenches-detach-tool-for-kitchen-bathroom-faucet-parts-repair-spanner\"\u003eMulti-Use Faucet Bubbler Wrenches – 6 Sizes Repair Spanner\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/3pcs-silicone-sealant-scraper-set-multi-functional-caulking-nozzle-tools-for-tile-floor-joints-grout-finishing-and-renovation\"\u003e3PCS Silicone Sealant Scraper Set – Multi-Functional Caulking Tools\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1pc-sheath-fold-knife-plier-bag-pouch-case-sheath-belt-loop-pocket-carry-storage-flashlight-holder-waist-pack\"\u003eSheath Fold Knife Plier Bag – Belt Loop Pocket \u0026amp; Flashlight Holder\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.fueleconomy.gov\/feg\/drive.shtml\" target=\"_blank\" rel=\"noopener\"\u003eFuelEconomy.gov driving efficiency guidance\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What voltage range does this automotive circuit tester pen support?\u003c\/h4\u003e\n\u003cp\u003eA: This digital voltage circuit tester pen supports a wide range of \u003cstrong\u003e6V to 72V\u003c\/strong\u003e, making it suitable for standard 6V, 12V, and 24V vehicle electrical systems found in cars, trucks, vans, and more.\u003c\/p\u003e\n\u003ch4\u003eQ: Does this circuit tester pen require batteries to operate?\u003c\/h4\u003e\n\u003cp\u003eA: No — the tester draws power directly from the circuit being tested, so \u003cstrong\u003eno batteries are required\u003c\/strong\u003e. Simply connect the alligator clip to a ground or power point and touch the probe to the circuit you want to test.\u003c\/p\u003e\n\u003ch4\u003eQ: How do I tell the polarity when using this tester?\u003c\/h4\u003e\n\u003cp\u003eA: The tester features a built-in LED polarity indicator: a \u003cstrong\u003ered light signals a positive pole\u003c\/strong\u003e and a \u003cstrong\u003egreen light signals a negative pole\u003c\/strong\u003e. You can connect the alligator clip to either pole and the display will correctly identify polarity automatically.\u003c\/p\u003e\n\u003ch4\u003eQ: What types of vehicle circuits can I test with this pen?\u003c\/h4\u003e\n\u003cp\u003eA: This tester is designed for a broad range of automotive circuit checks, including \u003cstrong\u003eheadlights, taillights, turn signal circuits, fuse connections, and faulty sockets\u003c\/strong\u003e. It is ideal for both DIY car owners and professional mechanics.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What voltage range does this automotive circuit tester pen support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This digital voltage circuit tester pen supports a wide range of 6V to 72V, making it suitable for standard 6V, 12V, and 24V vehicle electrical systems found in cars, trucks, vans, and more.\"}}, {\"@type\": \"Question\", \"name\": \"Does this circuit tester pen require batteries to operate?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No — the tester draws power directly from the circuit being tested, so no batteries are required. Simply connect the alligator clip to a ground or power point and touch the probe to the circuit you want to test.\"}}, {\"@type\": \"Question\", \"name\": \"How do I tell the polarity when using this tester?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The tester features a built-in LED polarity indicator: a red light signals a positive pole and a green light signals a negative pole. You can connect the alligator clip to either pole and the display will correctly identify polarity automatically.\"}}, {\"@type\": \"Question\", \"name\": \"What types of vehicle circuits can I test with this pen?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This tester is designed for a broad range of automotive circuit checks, including headlights, taillights, turn signal circuits, fuse connections, and faulty sockets. It is ideal for both DIY car owners and professional mechanics.\"}}]}\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:\/\/x1davz-b4.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Digital Voltage Circuit Tester Pen for Car \u0026 Truck 6V–72V\", \"item\": \"https:\/\/x1davz-b4.myshopify.com\/products\/digital-voltage-circuit-tester-pen-car-truck-6v-72v\"}]}\u003c\/script\u003e","brand":"Nixie","offers":[{"title":"Red Version 6v-24v","offer_id":67583062245475,"sku":"1005010009854120-Red Version 6v-24v","price":15.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/2047\/6003\/files\/S0a04b9d693264e97ade4dd68b7819691e.webp?v=1790533360","url":"https:\/\/nixiehaven.com\/products\/digital-voltage-circuit-tester-pen-car-truck-6v-72v","provider":"Nixie","version":"1.0","type":"link"}