---
product_id: 596298235
title: "Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe"
brand: "jastind"
price: "403.73 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Jastind"
url: https://www.desertcart.tn/products/596298235-heavy-duty-3-72v-backlit-digital-lcd-circuit-tester-automotive
store_origin: TN
region: Tunisia
---

# 3-72V wide voltage range 140-inch extended PU spring wire ±0.2V digital accuracy Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe

**Brand:** jastind
**Price:** 403.73 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Test Smarter, Not Harder — The Ultimate Digital Circuit Sidekick

## Quick Answers

- **What is this?** Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe by jastind
- **How much does it cost?** 403.73 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/596298235-heavy-duty-3-72v-backlit-digital-lcd-circuit-tester-automotive)

## 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

- • **Polarity Perfect:** Dual-color LED indicators instantly reveal voltage polarity—no more second-guessing your connections.
- • **Plug & Play Power:** No batteries needed—powered directly by the circuit, making it always ready when you are.
- • **Reach & Flexibility:** Extra-long 140-inch PU spring wire and large alligator clip let you test hard-to-reach spots with ease.
- • **Built to Last & Safe:** Sharp stainless steel probe with anti-lost rubber tip protects you and your tool during every job.
- • **Precision Voltage Insight:** Crystal-clear backlit LCD with 0.1V resolution ensures you never guess your circuit’s health.

## Overview

The JASTIND Heavy Duty 3-72V Backlit Digital LCD Circuit Tester is a professional-grade automotive tool designed for precise low-voltage DC circuit diagnostics. Featuring a wide 3-72V testing range, ±0.2V accuracy, and a vivid backlit digital display, it offers real-time voltage readings and polarity indication via dual LED lights. Its 140-inch durable PU spring wire and large alligator clip provide unmatched reach and convenience, while the sharp stainless steel probe with an anti-lost rubber tip ensures safety and durability. Ideal for automotive, marine, and household electrical troubleshooting, this tester requires no batteries and meets CE and UL standards.

## Description

JASTIND DC 3-72V heavy duty test light is a premium automotive tool, ideal for checking auto circuits, fuses, switches and wiring on automobiles, trailers, boats, motorcycles, and other low DC voltage systems. Why choose us ? Digital display for accurate voltage readouts. Dual color indicate lights display circuits polarity. 3 -72V tester for DC 6/12/24/48/60V system. Display module is powered by circuits to be tested, no battery required. Maximum extended length 140" PU spring test lead longer than others. Large Alligator clamp for one-hand operation. Sharp stainless steel pointed probe for piercing wire insulation. Anti-lost Rubber probe cover protector. SPECS Voltage testing range: 3-72V. Resolution: 0.1V Accuracy: ±1%+2digitals Working environment: 14-122℉(-10-50℃); Relative humidity<80%

Review: Good test light - Item was received in a sealed box. Electrical tape was provided with the item. Item has a blue back light with a digital voltage reading that was easy to read and was more or less accurate when compared with reading from my multimeter. Polarity feature works well and is pretty straight forward in terms of use . build quality is very good in my opinion and was a good buy
Review: Great tester - Arrived promptly, well packaged, works well. It works much better than my old tester plus it tells you the voltage testing. Great product.

## Features

- 【WIDE TESTING RANGE & VOLTAGE POLARITY TESTING】3-72v low volt circuit test light, designed for checking various vehicles’ electrical circuits, such as automotive headlights, taillights, faulty sockets, fuse, also for other 3-72V DC wiring and circuits. This is also a bidirectional voltage tester with 2 color LED lights for volt polarity indicating, you can attach the alligator clamp either to ground or positive. This is really A must have tool no matter for business or household use.
- 【COMPUTER SAFE & BACKLIGHT DIGITAL DISPLAY PART】Heavy Duty circuit light tester with highly clear LCD digital blue backlight display screen, resolution to .1V voltage reading with high accuracy to ±0.2V, clear&visible digital readouts for day and night. JASTIND test light draws much less current than the incandescent lamp, which is less likely to damage sensitive circuits.
- 【ANTI-LOST PROBE PROTECTIVE TIP & QUALITY MADE TESTER BODY】Sharp stainless steel probe for piercing wires effortlessly, also for hard to reach tight areas, while along with an integrated design anti-lost protective rubber tip, make sure no stab and wound and won't be lost whenever you go. Professional automotive circuit tester with premium acetate fiber body, allows for more toughness and durability.
- 【EXTENDED PU SPRING & LARGE ALLIGATOR CLIP】High quality 140 inch long enough PU spring wire offers more flexibility, lighter and more durable than normal cable wires, heat-insulation and oil resistance for daily use. Attach with large size alligator clip for easy one hand operation, also for convenient use and storage.
- 【100% Quality Guarantee】If you are looking for a durable circuit testing tool, this one is for you. We always stand behind our products, if you have any questions or concerns, just please feel free to contact us and you will get our best support surely, click "Add to Cart" with confidence today.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BTYTWTBQ |
| Brand | JASTIND |
| Brand Name | JASTIND |
| Colour | Blue |
| Country of Origin | USA |
| Customer Reviews | 4.7 out of 5 stars 468 Reviews |
| Included Components | Automotive Circuit Tester |
| Item Weight | 140 Grams |
| Lower Temperature Rating | 14 Degrees Fahrenheit |
| Manufacturer | JASTIND |
| Maximum Operating Voltage | 72 Volts |
| Measurement Type | Digital Voltmeter |
| Minimum Operating Voltage | 3 Volts |
| Model Number | JTCVT02A |
| Part Number | JTCVT02A |
| Power Source | Battery Powered |
| Power Source Type | Battery Powered |
| Specification Met | CE, IEC 61010-1:2000-1, UL |
| Style | Modern |
| Style Name | Modern |
| UPC | 649226709139 |
| Upper Temperature Rating | 122 Degrees Fahrenheit |

## Product Details

- **Brand:** JASTIND
- **Power Source:** Battery Powered
- **Style:** Modern
- **Colour:** Blue
- **Item Weight:** 140 Grams

## Images

![Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe - Image 1](https://m.media-amazon.com/images/I/71lJcXZ1edL.jpg)
![Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe - Image 2](https://m.media-amazon.com/images/I/81TwpZ4zJ0L.jpg)
![Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe - Image 3](https://m.media-amazon.com/images/I/71c12Kz6DQL.jpg)
![Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe - Image 4](https://m.media-amazon.com/images/I/71ciXa4zJAL.jpg)
![Heavy Duty 3-72V Backlit Digital LCD Circuit Tester, Automotive Test Light with 140 Inch Extended Wire and 2 Polarity Indicate LED Lights, Car Truck Low DC Voltage & Light Tester with Stainless Probe - Image 5](https://m.media-amazon.com/images/I/81Y8JmQx4zL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good test light
*by J***R on 19 July 2025*

Item was received in a sealed box. Electrical tape was provided with the item. Item has a blue back light with a digital voltage reading that was easy to read and was more or less accurate when compared with reading from my multimeter. Polarity feature works well and is pretty straight forward in terms of use . build quality is very good in my opinion and was a good buy

### ⭐⭐⭐⭐⭐ Great tester
*by J***. on 14 March 2025*

Arrived promptly, well packaged, works well. It works much better than my old tester plus it tells you the voltage testing. Great product.

### ⭐⭐⭐⭐⭐ Highly recommended
*by J***. on 20 March 2026*

Owesome tools, I love this makes my work easier and heavy duty tools

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-06-24*