---
product_id: 738125208
title: "FEAOXYO Heavy Duty Automotive Circuit Tester 5-90V Test Light, Digital LED Voltage Tester with Voltmeter, Dual Polarity Indicator & Stainless Probe for Car, Truck, RV, Boat Electrical Fuse Testing"
brand: "feaoxyo"
price: "2419 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Feaoxyo"
url: https://www.desertcart.is/products/738125208-feaoxyo-heavy-duty-automotive-circuit-tester-5-90v-test-light
store_origin: IS
region: Iceland
---

# 5-90V range, precise 0.1V resolution Rugged ABS body & stainless steel probe Dual-color polarity indicator FEAOXYO Heavy Duty Automotive Circuit Tester 5-90V Test Light, Digital LED Voltage Tester with Voltmeter, Dual Polarity Indicator & Stainless Probe for Car, Truck, RV, Boat Electrical Fuse Testing

**Brand:** feaoxyo
**Price:** 2419 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Never miss a spark: precision testing that keeps your ride road-ready!

## Quick Answers

- **What is this?** FEAOXYO Heavy Duty Automotive Circuit Tester 5-90V Test Light, Digital LED Voltage Tester with Voltmeter, Dual Polarity Indicator & Stainless Probe for Car, Truck, RV, Boat Electrical Fuse Testing by feaoxyo
- **How much does it cost?** 2419 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/738125208-feaoxyo-heavy-duty-automotive-circuit-tester-5-90v-test-light)

## Best For

- feaoxyo enthusiasts

## Why This Product

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

## Key Features

- • **Reach Every Circuit:** Extra-long 96-inch flexible coil wire lets you access tight, hard-to-reach spots effortlessly.
- • **Built for the Real World:** Durable ABS casing and sharp stainless probe withstand drops, grease, and daily workshop chaos.
- • **Instant Polarity Clarity:** Dual red/green LED indicators eliminate guesswork and protect sensitive electronics from costly errors.
- • **Pinpoint Voltage Accuracy:** Crystal-clear LED display delivers exact 5-90V readings with 0.1V precision for flawless diagnostics.
- • **All-in-One Automotive Essential:** Versatile tester perfect for cars, trucks, RVs, and boats—fuse checks, voltage tests, and wire tracing made simple.

## Overview

The FEAOXYO Heavy Duty Automotive Circuit Tester is a professional-grade digital voltmeter and test light designed for 5-90V automotive systems. Featuring a crystal-clear LED display with 0.1V resolution, dual-color polarity indicators, and a rugged ABS body with a stainless steel probe, it ensures accurate, safe, and durable electrical diagnostics. Its 96-inch flexible coil wire provides unmatched reach for testing cars, trucks, RVs, and boats, making it an indispensable tool for both professional technicians and DIY enthusiasts.

## Description

FEAOXYO Heavy Duty Automotive Circuit Tester 5-90V Test Light, Digital LED Voltage Tester with Voltmeter, Dual Polarity Indicator & Stainless Probe for Car, Truck, RV, Boat Electrical Fuse Testing: desertcart.com: Tools & Home Improvement

Review: Very good tester - This LED testlight worked well for me. I used it while installing a lighter plug and also when I was looking for a blown fuse in my truck. Very easy to see the readout, and to green light helped me greatly. Seems durable - I dropped it onto my concrete driveway without damage. I wish there green {Hot} light was a little brighter. Regardless.. a good tester at a great price.
Review: Great inexpensive tester - This is a great tester getting just a little light showing up it actually shows you the voltage of what your testing. It is simple and easy to use. I really like this small convenient tester.

## Features

- INSTANT AND ACCURATE VOLTAGE READINGS: This professional digital test light with voltmeter features a crystal-clear digital LED screen that delivers pinpoint voltage measurements from 5-90V with 0.1V resolution. Making it the perfect voltage tester for any automotive electrical work and systems, ideal for professional technicians and DIYers alike
- AVOID COSTLY CONNECTION ERRORS: Stay safe and protect sensitive vehicle electronics with the intuitive dual-color polarity lights, red for positive (+) and green for negative (-)—that illuminate instantly when the stainless steel probe touches a circuit. Taking the risk out of electrical work, making it a must-have for garage safety
- BUILT TO SURVIVE THE BUSY WORKSHOPS: This electrical tester boasts a rugged ABS body that resists drops, grease and impact, ideal for the chaos of garages or DIY home projects. The sharp stainless steel probe penetrates tight spaces and maintains solid contact, while the reinforced construction ensures long-lasting performance even with daily use
- FLEXIBLE TO REACH EVERY SPOT: Effortlessly diagnose hard-to-reach areas with the extra-long, 96-inch flexible spring coil wire. It allows you to easily access any part of your car, truck, or motorcycle from a single ground point. Plus, the integrated anti-lost probe cover keeps your tool protected and easy to find
- VERSATILE FOR YOUR NEEDS: This all-in-one automotive circuit tester is ideal for 12V/24V systems. Perfect for checking fuses, verifying voltage at connectors, testing circuits, and tracing wires on your car, truck, RV, boat, and more. Making it an essential tool for consistent quality in your daily electrical troubleshooting

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F2MLGK6Q |
| Best Sellers Rank | #8,272 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #15 in Circuit Testers |
| Brand Name | FEAOXYO |
| Color | Red/Metallic |
| Customer Reviews | 4.6 out of 5 stars 306 Reviews |
| Included Components | 5-90 V Automotive Test Light |
| Manufacturer | FEAOXYO |
| Maximum Operating Voltage | 90 Volts |
| Measurement Type | Voltmeter |
| Minimum Operating Voltage | 5 Volts |
| Power Source | Corded Electric |
| UPC | 649226718155 |

## Product Details

- **Brand:** FEAOXYO
- **Color:** Red/Metallic
- **Measurement Type:** Voltmeter
- **Min. Operating Voltage:** 5 Volts
- **Power Source:** Corded Electric

## Images

![FEAOXYO Heavy Duty Automotive Circuit Tester 5-90V Test Light, Digital LED Voltage Tester with Voltmeter, Dual Polarity Indicator & Stainless Probe for Car, Truck, RV, Boat Electrical Fuse Testing - Image 1](https://m.media-amazon.com/images/I/71494CQVb1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good tester
*by D***. on October 21, 2025*

This LED testlight worked well for me. I used it while installing a lighter plug and also when I was looking for a blown fuse in my truck. Very easy to see the readout, and to green light helped me greatly. Seems durable - I dropped it onto my concrete driveway without damage. I wish there green {Hot} light was a little brighter. Regardless.. a good tester at a great price.

### ⭐⭐⭐⭐⭐ Great inexpensive tester
*by L***W on January 10, 2026*

This is a great tester getting just a little light showing up it actually shows you the voltage of what your testing. It is simple and easy to use. I really like this small convenient tester.

### ⭐⭐⭐⭐⭐ First tester faulty Replacement is accurate (Read Edit)!
*by S***R on October 27, 2025*

I really wanted to like this tool. It looks very nice and well made except the reading for voltage is off! I like the reading for polarity, (I’d rather the green light be on for correct polarity) and the cord with probe cap is works well. The biggest problem is the voltage reading is not accurate. On a 12 volt car battery I get a reading of over 16 volts. So basically this for me is only a test light for continuity that will also let me know if polarity is correct. Review Edit. Seller offered me a refund right away. But since I don’t check my emails very often I didn’t see offer for around 2 months. I contacted seller to see if offer was still good. The seller refunded my money so I purchased another circuit testers. This second tester works excellent, I checked a battery that I had just charged it showed 13.1 volts. I checked the battery in my car it showed 12.3 volts. This tester appears to be accurate as the voltage numbers are within what I expected. I tested batteries with a meter and the voltages are within 0.2 between meter and test light. I would buy again from this seller as I’m very pleased with their after sale service.

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**Shop now:** [https://www.desertcart.is/products/738125208-feaoxyo-heavy-duty-automotive-circuit-tester-5-90v-test-light](https://www.desertcart.is/products/738125208-feaoxyo-heavy-duty-automotive-circuit-tester-5-90v-test-light)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-23*