---
product_id: 536387621
title: "KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses"
brand: "kaiweets"
price: "¥6635"
currency: JPY
in_stock: true
reviews_count: 8
category: "Kaiweets"
url: https://www.desertcart.jp/products/536387621-kaiweets-0-8v-100v-dc-smart-automotive-test-light-buzzer
store_origin: JP
region: Japan
---

# 0.8-100V wide DC range Bright green backlit LCD Audible buzzer for continuity KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses

**Brand:** kaiweets
**Price:** ¥6635
**Availability:** ✅ In Stock

## Summary

> 🔧 Power up your diagnostics with precision and ease!

## Quick Answers

- **What is this?** KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses by kaiweets
- **How much does it cost?** ¥6635 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/536387621-kaiweets-0-8v-100v-dc-smart-automotive-test-light-buzzer)

## Best For

- kaiweets enthusiasts

## Why This Product

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

## Key Features

- • **Clear Digital Readout:** Bright green backlit LCD ensures accurate voltage readings day or night.
- • **Ergonomic Sharp Probe:** Compact, copper-nickel plated probe fits tight spaces safely and efficiently.
- • **Smart Auto-Sensing Mode:** Seamlessly switches between voltage, continuity, and resistance for effortless precision.
- • **Ultra-Wide Voltage Range:** Tests from 0.8V up to 100V DC, covering all your automotive electrical needs.
- • **Durability Meets Convenience:** Includes protective coiled wire cover, storage pouch, spare battery, and 3-year support.

## Overview

The KAIWEETS VT501 is a professional-grade automotive circuit tester featuring smart auto-sensing technology that automatically detects DC voltage, continuity, and resistance without manual mode switching. It supports a broad 0.8-100V DC range, ideal for testing vehicle circuits like headlights, fuses, and wiring. Equipped with a bright green backlit LCD for clear voltage readings and an audible buzzer for continuity checks, it combines accuracy with user-friendly design. Its durable copper-nickel plated sharp probe and protective accessories ensure safe, efficient testing in tight automotive spaces. Backed by a 3-year warranty and lifetime technical support, this tool is a must-have for millennial professionals who demand reliability and smart functionality.

## Description

Product description Bright Digital Display Features a clear and bright green backlight LED digital display that provides accurate volt readouts, guaranteed to be clearly visible in both bright and dim environment. Long Copper-Nickel Plating Probe The Copper-Nickel Plating Probe provides good electrical conductivity and the 1.65" probe ensures an effective safety distance to prevent the risk of electric shock. Large-Sized Alligator Clip A Large-Sized Alligator Clip to ensure that you can clip any object you want to test while facilitating you to be able to operate one-handed to improve efficiency. Thick Probe Cap A Thick Probe Cap protects you from accidental probe punctures while helpingto make the spring wire easy to carry.

Review: Great device. Well made. - This item is great. Very well made and works great. Can’t test connections anymore without it. Very convenient and impress on how it automatically switches between voltage to continuity
Review: great features and much better than old tester - I love this new tester; much more convenient and feature full over my old light bulb 12v tester. I am debugging an electrical issue in a mobile home and I am leaving it in the engine compartment (connected to solid ground) for quick voltage and continuity checks.

## Features

- Smart Mode : The professional automotive circuit tester defaults to SMART mode. Automatically senses between DC voltage, continuity and resistance testing without having to change any settings for the highest precision, making it easy to use
- 0.8-100 V Wider Testing Range : Upgraded technology allows for measuring a maximum voltage of 100 V, outperforming the majority of auto electrical testers available on the market. Widely and perfectly for examining different vehicles’ electrical circuits, such as automotive headlights, taillights, faulty sockets, and fuse connections, as well as other 0.8-100 V DC wirings and circuits
- Buzzing & Accurate Digital Reading : Buzzer sounds during continuity testing. 0.1 V resolution ratio with high accuracy. The test light with voltage display features a bright green backlight LCD digital display that provides accurate volt readouts, clear and visible for day and night
- Quality Made & User-friendly : Our high-quality materials, unlike plastic test light bodies, are more secure to test. Its size and sharp test light probe are just right for tight areas like under the dash and a protective cover is attached to the coiled wire so you can protect against damaging things when you're done with it
- Rest Assured to Buy : If durability is what you seek in a circuit testing tool, look no further. This digital test light comes with a nice little storage pouch to keep it in and a spare battery. And 3-year after-sales service and lifetime technical assistance are provided

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C4TJ6VQC |
| Best Sellers Rank | #43,334 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #73 in Circuit Testers |
| Brand | KAIWEETS |
| Brand Name | KAIWEETS |
| Color | Green |
| Customer Reviews | 4.5 out of 5 stars 1,889 Reviews |
| Included Components | User Manual *1, Test Light *1 |
| Item Dimensions | 8.5 x 2.24 x 1.73 inches |
| Item Weight | 0.15 Kilograms |
| Item dimensions L x W x H | 8.5 x 2.24 x 1.73 inches |
| Manufacturer | KAIWEETS |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 0.8 Volts (DC) |
| Model | VT501 |
| Power Source | Battery Powered |
| Style | Modern |
| Style Name | Modern |

## Product Details

- **Brand:** KAIWEETS
- **Color:** Green
- **Item Weight:** 0.15 Kilograms
- **Power Source:** Battery Powered
- **Style:** Modern

## Images

![KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses - Image 1](https://m.media-amazon.com/images/I/71F1co-MTBL.jpg)
![KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses - Image 2](https://m.media-amazon.com/images/I/81oDzQ82kDL.jpg)
![KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses - Image 3](https://m.media-amazon.com/images/I/81gxDxMv84L.jpg)
![KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses - Image 4](https://m.media-amazon.com/images/I/81P+lvqtPpL.jpg)
![KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses - Image 5](https://m.media-amazon.com/images/I/81u8jMqKiaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great device. Well made.
*by P***Y on September 22, 2025*

This item is great. Very well made and works great. Can’t test connections anymore without it. Very convenient and impress on how it automatically switches between voltage to continuity

### ⭐⭐⭐⭐⭐ great features and much better than old tester
*by A***R on November 2, 2025*

I love this new tester; much more convenient and feature full over my old light bulb 12v tester. I am debugging an electrical issue in a mobile home and I am leaving it in the engine compartment (connected to solid ground) for quick voltage and continuity checks.

### ⭐⭐⭐⭐ Good product
*by P***S on October 28, 2025*

For a test light it does work good and easy to you in the field

## Frequently Bought Together

- KAIWEETS 0.8V-100V DC Smart Automotive Test Light, Buzzer Circuit Tester with Sharp Probe, Bidirectional Voltage Tester with Flashlight, Electric Test Pen for Car Battery Polarity Continuity Fuses
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-05*