---
product_id: 125799304
title: "Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe"
brand: "jastind"
price: "€ 34.99"
currency: EUR
in_stock: true
reviews_count: 10
category: "Jastind"
url: https://www.desertcart.hr/products/125799304-heavy-duty-3-65v-backlit-digital-lcd-circuit-tester-test
store_origin: HR
region: Croatia
---

# 3-65V wide voltage range ±0.2V high accuracy digital readout 140-inch flexible PU spring wire Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe

**Brand:** jastind
**Price:** € 34.99
**Availability:** ✅ In Stock

## Summary

> 🔧 Power up your diagnostics with precision and reach!

## Quick Answers

- **What is this?** Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe by jastind
- **How much does it cost?** € 34.99 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/125799304-heavy-duty-3-65v-backlit-digital-lcd-circuit-tester-test)

## 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

- • **Trusted Performance:** Top-rated tool with 4.6 stars and UL/NIST certification—engineered to last and impress.
- • **Durable & Safe Design:** Premium acetate fiber body with insulated stainless steel probe for reliable, shock-free testing.
- • **Universal Compatibility:** Tests 3-65V DC circuits—perfect for cars, trucks, ATVs, and solar systems alike.
- • **Precision Voltage Insight:** Backlit LCD with 0.1V resolution ensures you never miss a detail, day or night.
- • **Extended Reach & Flexibility:** 140-inch PU spring wire and large alligator clip let you work hands-free in tight spots.

## Overview

The Heavy Duty 3-65V Backlit Digital LCD Circuit Tester by JASTIND is a professional-grade electrical testing tool designed for automotive and low voltage DC circuits. Featuring a wide 3-65V testing range, a highly accurate ±0.2V backlit digital display, and a durable acetate fiber body with a stainless steel probe, it offers reliable, safe, and precise diagnostics. Its 140-inch flexible PU spring wire and large alligator clip provide extended reach and ease of use, making it a must-have for professionals and DIYers alike.

## Description

Product description

Review: Good product - I recently got a 12V test light for checking fuses and electrical circuits, and it has been a really handy tool. It makes it super easy to quickly see if a fuse is getting power without having to guess or pull everything apart. What I really like is how simple and effective it is. You just touch the fuse or circuit, and it clearly shows whether there’s voltage present. It saves a lot of time when diagnosing electrical issues, especially in a truck or car. The build feels solid for a basic diagnostic tool, and the probe is sharp enough to get a good connection without being difficult to use. It’s also compact, so I can keep it in my toolbox or glove compartment without it taking up space. Overall, this is a must have tool if you work on vehicles or just want to quickly check electrical problems. Simple, reliable, and very useful for everyday diagnostics.
Review: Good buy - Product is good quality and worked as advertised. I liked it especially because it came with some directions unlike some things I have ordered in the past.

## Features

- 【Wide testing range & Voltage Polarity Testing】3-65v low DC volt circuit test light, designed for checking various vehicles’ electrical circuits, such as automotive headlights, taillights, faulty sockets, fuse, also for testing other 3-65V DC wiring and circuits. This is also a bidirectional voltage tester with volt polarity indicating, you can attach the alligator clamp either to ground or positive. A must have tool no matter for business or household use, will serve you faithfully for years.
- 【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.
- 【Quality Made Tester Body】Professional automotive circuit tester with premium acetate fiber body, allows for more toughness and durability. Sharp stainless steel probe for piercing wires effortlessly, also for hard to reach tight areas. Along with insulation protective rubber tip to against electric shock.
- 【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.
- 【Long Time Quality Support】If you are looking for a durable circuit testing tool, this one is for you. We always stand behind our products, click "Add to Cart" with confidence today.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07PX16XDX |
| Best Sellers Rank | #4,784 in Automotive ( See Top 100 in Automotive ) #7 in Electrical System Tools |
| Brand | JASTIND |
| Brand Name | JASTIND |
| Color | Blue, Clear |
| Compatible Devices | Vehicles with 3-65V DC electrical systems |
| Customer Reviews | 4.6 out of 5 stars 6,440 Reviews |
| Item Weight | 140 Grams |
| Manufacturer | JASTIND |
| Measurement Type | Voltmeter |
| Min. Operating Voltage | 3 Volts |
| Minimum Operating Voltage | 3 Volts |
| Model | 13 |
| Part Number | JTCVT-01C |
| Power Source | Battery Powered |
| Specification Met | NIST, UL |
| Style | Electronic |
| Style Name | Electronic |
| UPC | 682698800003 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** JASTIND
- **Color:** Blue, Clear
- **Item Weight:** 140 Grams
- **Power Source:** Battery Powered
- **Style:** Electronic

## Images

![Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - Image 1](https://m.media-amazon.com/images/I/71Xse13hFYL.jpg)
![Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - Image 2](https://m.media-amazon.com/images/I/81DLdiE5sVL.jpg)
![Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - Image 3](https://m.media-amazon.com/images/I/71FwyoUUEIL.jpg)
![Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - Image 4](https://m.media-amazon.com/images/I/71zNJVzpduL.jpg)
![Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe - Image 5](https://m.media-amazon.com/images/I/517hMAOQ-yL.jpg)

## Questions & Answers

**Q: How can i exchange this item mine is not working**
A: Put it in the trash and leave feedback so other don't make the same mistake as we did.  I would never recommend this item to anyone!  Mine stopped working too, waste of money...

**Q: If i use this tool to check a 24v dc circuit how much current will it draw?  my goal is something around 1amp at 24 volts.**
A: It depends on what system you checking some starter systems drive to 160 A

**Q: Ho long does it take for display to indicate voltage?**
A: If your connected to a proper ground such as the negative post of the battery it should be immediately

**Q: Does the tester have a visible light?  I need to test pulsing ignition circuits and a digital meter alone would be too slow to react.**
A: It does not have a pulsing light. The digital readout lights up, then shows voltage. Although you could go off of the screen lighting up, but i'm not sure how accurate that would be.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by A***Y on April 11, 2026*

I recently got a 12V test light for checking fuses and electrical circuits, and it has been a really handy tool. It makes it super easy to quickly see if a fuse is getting power without having to guess or pull everything apart. What I really like is how simple and effective it is. You just touch the fuse or circuit, and it clearly shows whether there’s voltage present. It saves a lot of time when diagnosing electrical issues, especially in a truck or car. The build feels solid for a basic diagnostic tool, and the probe is sharp enough to get a good connection without being difficult to use. It’s also compact, so I can keep it in my toolbox or glove compartment without it taking up space. Overall, this is a must have tool if you work on vehicles or just want to quickly check electrical problems. Simple, reliable, and very useful for everyday diagnostics.

### ⭐⭐⭐⭐⭐ Good buy
*by A***R on April 27, 2026*

Product is good quality and worked as advertised. I liked it especially because it came with some directions unlike some things I have ordered in the past.

### ⭐⭐⭐⭐⭐ good quality tool
*by M***R on April 8, 2026*

This test tool is well made and seems to work well. the voltage displays accurately and the only downside is that it is not actually a "test light". But I like the tool and would recommend it.

## Frequently Bought Together

- Heavy Duty 3-65V Backlit Digital LCD Circuit Tester, Test Light with 140 Inch Extended Spring Wire, Car Truck Low Voltage & Light Tester with Stainless Probe
- JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro Fuse + 1 Puller – for Car/RV/Truck/Motorcycle(2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A)
- Premium LED Bulb Automotive Circuit Tester, 6-24V Test Light with 135 Inch PU Extended Spring Wire, Sharp Hard Steel Probe Vehicle Circuits Low DC Voltage Light Tester

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**Shop now:** [https://www.desertcart.hr/products/125799304-heavy-duty-3-65v-backlit-digital-lcd-circuit-tester-test](https://www.desertcart.hr/products/125799304-heavy-duty-3-65v-backlit-digital-lcd-circuit-tester-test)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-22*