--- product_id: 441218012 title: "ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip" brand: "zktool" price: "94.38 DT" currency: TND in_stock: true reviews_count: 13 url: https://www.desertcart.tn/products/441218012-zktool-3-36v-automotive-circuit-tester-pen-test-light-vehicle store_origin: TN region: Tunisia --- # 3-36V wide voltage range ±0.2V accuracy with 1V resolution Dual LED polarity indicators ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip **Brand:** zktool **Price:** 94.38 DT **Availability:** ✅ In Stock ## Summary > 🔧 Power up your diagnostics with precision and confidence! ## Quick Answers - **What is this?** ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip by zktool - **How much does it cost?** 94.38 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/441218012-zktool-3-36v-automotive-circuit-tester-pen-test-light-vehicle) ## Best For - zktool enthusiasts ## Why This Product - Trusted zktool brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Pinpoint Accuracy:** Clear LCD display with ±0.2V accuracy ensures reliable diagnostics. - • **Durable Copper Probe:** Sharp, rust-resistant pure copper probe pierces wires effortlessly. - • **Versatile Voltage Range:** Test any 3-36V vehicle circuit with precision and ease. - • **Instant Polarity Detection:** Red and green LEDs instantly reveal battery positive or negative. - • **Flexible & Secure Connections:** TPU spring wire and firm alligator clips adapt to any workspace. ## Overview The ZKTOOL 3-36V Automotive Circuit Tester Pen is a compact, battery-powered voltmeter designed for professional-grade testing of vehicle electrical systems. Featuring a wide DC voltage range, sharp pure copper probe, and dual LED polarity indicators, it delivers accurate voltage readings with ±0.2V precision. Its flexible TPU spring wire and secure alligator clips make it ideal for diagnosing headlights, taillights, fuses, and more, ensuring safe and efficient troubleshooting for all 3-36V circuits. ## Description The circuit tester with DC 3-36V low voltage test range, designed for checking various vehicle electrical circuits, such as automobile headlights, taillights, turn signal circuit, faulty sockets, fuse connections, also useful for testing other 3-36V wiring and circuits. ## Features - 【Wide Application】The circuit test lamp with DC 3-36V low voltage test range, designed for checking various vehicle electrical circuits, such as automobile headlights, taillights, turn signal circuit, faulty sockets, fuse connections, also useful for testing other 3-36V wiring and circuits. In addition, the battery positive or negative can also be judged by the red and green LED indicators. - 【Clear Digital Display and LED Indicators】The circuit light tester with super clear LCD display, resolution to 1V voltage reading with ±0.2V accuracy. Moreover, when judging the polarity of the power supply, the two LED indicators light up in different colors to make judgments. - 【3 position switch】The circuit light tester with a 3 position switch. The 3 gears are stopped, judge the positive and negative poles of the battery and test the voltage. When judging the positive and negative poles of the battery, the red light indicates that the power supply is positive, and the green light indicates that the power supply is negative. - 【Sharp Pure Copper Probe】The voltage tester has a pure copper probe that does not rust and conducts very well. It's sharp enough to easily pierce wires and get into tight, hard-to-reach areas. The fuselage is insulated, so you can work safely. - 【TPU Spring Wire & Alligator Clips】 The lengthened TPU spring wire can be applied to more scenes. It has more flexibility than regular yarn and is easier to organize and store. The pure copper alligator clip is very firm, does not slip, and is very convenient to use... ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B09P9LGBNM | | Best Sellers Rank | 209,554 in DIY & Tools (See Top 100 in DIY & Tools) 232 in Circuit Testers | | Brand | ZKTOOL | | Colour | Red | | Compatible Devices | All vehicles with electrical systems | | Country Of Origin | China | | Customer Reviews | 4.3 4.3 out of 5 stars (632) 4.3 out of 5 stars | | Manufacturer | ZKTOOL | | Manufacturer Part Number | ZKEU006 | | Maximum Operating Voltage | 36 Volts | | Measurement Type | Voltmeter | | Minimum Operating Voltage | 3 Volts | | Model Number | 3-36V | | Number Of Items | 1 | | Number Of Packs | 1 | | Power Source | Battery Powered | | Specification Met | CE marked, RoHS compliant | | Style Name | Compact | | Unit Count | 1.0 count | | Upc | 753165245747 | ## Product Details - **Brand:** ZKTOOL - **Colour:** Red - **Min. Operating voltage:** 3 Volts - **Power source:** Battery Powered - **Style:** Compact ## Images ![ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip - Image 1](https://m.media-amazon.com/images/I/51tAE-5yEQL.jpg) ![ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip - Image 2](https://m.media-amazon.com/images/I/611mdwXKi+L.jpg) ![ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip - Image 3](https://m.media-amazon.com/images/I/71frnlaoxhL.jpg) ![ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip - Image 4](https://m.media-amazon.com/images/I/61z4TA30aVL.jpg) ![ZKTOOL 3-36V Automotive Circuit Tester Pen, Test Light, Vehicle Voltage Tester, Determine Battery Positive and Negative, Auto Electrical Tester, Alligator Clip - Image 5](https://m.media-amazon.com/images/I/61dabFaenCL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect item *by on Reviewed in the United Kingdom 24 March 2025* Amazing item and great value ! ### ⭐⭐⭐⭐⭐ Did the job *by on Reviewed in the United Kingdom 12 January 2026* Did the job ### ⭐⭐⭐⭐ Straightforward, light use test tool. *by on Reviewed in the United Kingdom 10 February 2025* Simple easy to use circuit/voltage tester, probably not sturdy enough for daily use but compact to use as handy occasional tool. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/441218012-zktool-3-36v-automotive-circuit-tester-pen-test-light-vehicle](https://www.desertcart.tn/products/441218012-zktool-3-36v-automotive-circuit-tester-pen-test-light-vehicle) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-24*