---
product_id: 522430273
title: "Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire"
brand: "jastind"
price: "€ 33.26"
currency: EUR
in_stock: true
reviews_count: 8
category: "Jastind"
url: https://www.desertcart.hr/products/522430273-heavy-duty-3-72v-digital-led-automotive-test-light-circuit
store_origin: HR
region: Croatia
---

# 3-72V ultra-wide range dual LED auxiliary lighting bidirectional polarity indicator Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire

**Brand:** jastind
**Price:** € 33.26
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose like a pro—never miss a voltage beat!

## Quick Answers

- **What is this?** Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire by jastind
- **How much does it cost?** € 33.26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/522430273-heavy-duty-3-72v-digital-led-automotive-test-light-circuit)

## Best For

- jastind enthusiasts

## Why This Product

- Trusted jastind brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Polarity Alerts:** Red & green LEDs plus buzzer instantly tell you positive or negative polarity—no guesswork.
- • **Ergonomic & Safe Design:** Sharp stainless probe with anti-lost protective tip keeps you safe and efficient in tight spots.
- • **Ultra-Wide Voltage Range:** Test everything from motorcycles to trucks with a massive 3-72V span.
- • **Precision Digital Readout:** Crystal-clear LED display with ±0.2V accuracy for confident diagnostics day or night.
- • **Extended Reach & Durability:** 142-inch spring wire with anti-tensile PU coating for flexible, tangle-free testing anywhere.

## Overview

The JASTIND Heavy Duty 3-72V Digital LED Automotive Test Light is a professional-grade circuit tester designed for millennial managers who demand precision and reliability. Featuring an ultra-wide voltage range, bidirectional polarity detection with audible alerts, and dual LED auxiliary lights, it ensures accurate diagnostics on cars, trucks, and other 3-72V DC systems. Its stainless steel probe with a safety cover and a 142-inch durable spring wire make it perfect for on-the-go troubleshooting. Backed by quality support, this tool is built to keep your vehicle’s electrical systems in check with confidence and style.

## Description

Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire: desertcart.com: Tools & Home Improvement

Review: Worth the money, I'd buy it again - As described on desertcart. Worked right out of the box, batteries not required. Tested it on a lithium rechargeable battery and it worked exactly as it should. It is just a glorified test light but the digital voltage readout will allow you to determine whether the right voltage is traveling through your circuit, just because you get a light to illuminate doesn't mean it's the right amount of voltage, so this will help you through the process of elimination to decide what to do next. I bought it specifically to find out if my coil circuits to the spark plugs are all good because it's throwing out a misfire code.
Review: Just what I needed - Very good and very good price.

## Features

- 【3-72V WIDER TESTING RANGE】 JASTIND premium automotive test light is upgraded to 3-72V voltage testing range, wider than most test lights on the market. This auto circuit tester ideal for checking various vehicles’ electrical circuits, such as car headlights, Taillights, fuses, car batteries, etc. It can also be used to measure other 3-72V DC circuit systems.
- 【LED DIGITAL DISPLAY & AUXILIARY LIGHTING】 Heavy Duty auto circuit light tester with LED digital display, voltage reading resolution to .1V with high accuracy to ±0.2V, clear&visible digital readouts for day and night. When measuring, there are two lighting LED beads will illuminate the measured circuit area, making night work more convenient than ever.
- 【BIDIRECTIONAL VOLTAGE TESTING & COMPUTER SAFE】 This is a bidirectional voltage tester with 2 color LED lights and a buzzer for volt polarity indicating, attach the clamp either to ground or positive, the red light will be on for positive and the buzzer sounds once; the green light will be on for negative and the buzzer sounds twice. Precision-designed circuit board generates much smaller current than normal test lights, greatly reducing the probability of damaging central computer board.
- 【ANTI-LOST PROBE PROTECTIVE TIP & QUALITY MADE TESTER BODY】Sharp stainless steel probe for piercing wires effortlessly and can reach tight areas. Specially designed anti-lost probe protective cover can avoid stabbing the user whether it is used or stored, and it will not be lost surely.Quality maximum 142 inch extended length spring wire with anti-tensile outer PU skin and good conductivity copper inner wire, automatically recover after stretching make it very convenient to use and store.
- 【LONG TIME QUALITY SUPPORT】Every customer’s needs and dissatisfaction is a powerful driving force for us to continuously improve the product. If you are looking for a high-end, long-term use car test light, this product is your right choice. We always stand behind our products and offer quality support if you have any questions or concerns. Click “Add to Cart” with confidence today - it will serve you faithfully for years.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C13QZXKY |
| Best Sellers Rank | #33,617 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #67 in Circuit Testers |
| Brand Name | JASTIND |
| Color | Green,Red |
| Customer Reviews | 4.6 4.6 out of 5 stars (902) |
| Included Components | Automotive Circuit Tester |
| Item Weight | 0.25 Kilograms |
| Manufacturer | JASTIND |
| Measurement Type | Digital Voltage Voltmeter |
| Minimum Operating Voltage | 3 Volts |
| Model | JTCVT601A |
| Power Source | Battery Powered |
| Specification Met | CE, RoHS, UL |
| Style Name | Beads |
| UPC | 649226709146 |
| Upper Temperature Rating | 122 Degrees Fahrenheit |

## Product Details

- **Brand:** JASTIND
- **Color:** Green,Red
- **Item Weight:** 0.25 Kilograms
- **Power Source:** Battery Powered
- **Style:** Beads

## Images

![Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire - Image 1](https://m.media-amazon.com/images/I/71G5FyPSx1L.jpg)
![Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire - Image 2](https://m.media-amazon.com/images/I/61UjFWZWFIL.jpg)
![Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire - Image 3](https://m.media-amazon.com/images/I/712D-By3VVL.jpg)
![Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire - Image 4](https://m.media-amazon.com/images/I/711rY24YfQL.jpg)
![Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire - Image 5](https://m.media-amazon.com/images/I/71EOjKw7JHL.jpg)

## Questions & Answers

**Q: Can you see the display in sunlight ?**
A: No.. the display is difficult to see outdoors.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth the money, I'd buy it again
*by J***S on January 13, 2026*

As described on Amazon. Worked right out of the box, batteries not required. Tested it on a lithium rechargeable battery and it worked exactly as it should. It is just a glorified test light but the digital voltage readout will allow you to determine whether the right voltage is traveling through your circuit, just because you get a light to illuminate doesn't mean it's the right amount of voltage, so this will help you through the process of elimination to decide what to do next. I bought it specifically to find out if my coil circuits to the spark plugs are all good because it's throwing out a misfire code.

### ⭐⭐⭐⭐⭐ Just what I needed
*by R***M on April 3, 2026*

Very good and very good price.

### ⭐⭐⭐⭐⭐ Good Light !
*by P***X on March 9, 2026*

Love this one beeps at you , gives you power , lights up , !

## Frequently Bought Together

- Heavy Duty 3-72V Digital LED Automotive Test Light, Circuit Tester with Polarity Indicate and Illuminating Lights, Car Truck Low DC Voltage Light Tester with Stainless Probe & 142 Inch Extended Wire
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**Shop now:** [https://www.desertcart.hr/products/522430273-heavy-duty-3-72v-digital-led-automotive-test-light-circuit](https://www.desertcart.hr/products/522430273-heavy-duty-3-72v-digital-led-automotive-test-light-circuit)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-04-23*