---
product_id: 173632509
title: "Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100"
brand: "topdiag"
price: "805 kr"
currency: DKK
in_stock: true
url: https://www.desertcart.dk/products/173632509-circuit-tester-automotive-power-circuit-probe-tester-test-light-automotive
store_origin: DK
region: Denmark
---

# Supports 9V-70V, AC/DC, 4 versatile modes Built-in flashlight for low-light diagnostics 40FT total cable length for deep reach Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100

**Brand:** topdiag
**Price:** 805 kr
**Availability:** ✅ In Stock

## Summary

> 🔧 Diagnose like a pro, wherever the road takes you!

## Quick Answers

- **What is this?** Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100 by topdiag
- **How much does it cost?** 805 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/173632509-circuit-tester-automotive-power-circuit-probe-tester-test-light-automotive)

## Best For

- topdiag enthusiasts

## Why This Product

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

## Key Features

- • **Multi-Mode Mastery:** Switch effortlessly between DC Voltage, AC Voltage, Resistance, and Tone modes for comprehensive diagnostics.
- • **Safety First, Always:** Built-in short circuit and overload protection safeguard both you and your vehicle’s electronics.
- • **Illuminate Every Detail:** Integrated flashlight ensures precision troubleshooting in dark or cramped spaces.
- • **DIY Friendly, Pro Results:** Quickly identify faulty circuits and components without needing expert skills or expensive tools.
- • **Extended Reach, No Limits:** 40FT cable + 20FT extension lets you test anywhere on your vehicle, even trailers.

## Overview

The P100 Automotive Circuit Tester is a professional-grade diagnostic tool featuring a combined 40FT cable length, built-in flashlight, and four versatile testing modes (DC Voltage, AC Voltage, Resistance, Tone). It supports 9V to 70V systems, including 12V cars and 24V trucks, with built-in overload and short circuit protection. Designed for both car enthusiasts and technicians, it enables fast, accurate electrical troubleshooting and component testing in any lighting or vehicle condition.

## Description

Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100

## Features

- Same Function As PP3: This P100 Circuit Tester is an absolute must if you're trying to diagnose and electrical issues or think an electrical part is bad. Does everything the more expensive ones do and at a better price.
- Time Saver & Quick DIY Test: Don't know much about cars? The P100 Power Circuit Probe Tester allowed to track down the problem in minutes, much faster than regular multimeter to trace out the wiring.
- 20FT Extension Cable, Built-in Flashlight: Cable length is gonna be important when troubleshooting the rear of a truck! Topdiag electric tester comes with extra 20ft extension cable in addition to its own 20ft cable, allowing you to access any position of the vehicle and test it. Ideal for trailer wiring, it can be tested along the vehicle without having to find a suitable ground point. The built-in flashlight is convenient for detection, even in the dark or dim environment, it can provide the best view for who need to work in night.
- Car Circuit Tester Kit: This Topdiag automotive circuit breaker finder tool can activate components on/off-board electrical system/ equipment, is designed for car technician or car enthusiasts. By activating the signal generated by the component, you can accurately judged whether the component is intact, such as blower motor, power window motor, windshield wiper, rear window defroster, lights, radiator fans, fuel injectors, etc. Also, automotive circuit tester tool can activate component in your hand/ in the vehicle/ with ground etc.
- Tracking & Locating Short Circuits, Overload Protection: Topdiag Electrical Circuit Tracer has a built-in short circuit protection. If overloaded, its internal circuit breaker finder will trip to ensure the safety of users and prolong the service life of the tester. Circuit tester automotive with large battery clip, can carry more load. Support wide input voltage range from 9V to 70V, also support 12V cars and 24V trucks.
- 4 Working Modes: make circuit detection more simple. DC Voltage, AC Voltage, Resistance, Tone On/ Off. 1) DC Voltage mode can read DC voltage with 0.1V resolution. 2) AC Voltage can get Min & Max voltage, duty cycle and frequency quickly. 3) Resistance mode to read resistance between tip and auxiliary ground wire. 4) Unique Tone On/ Off Design is really useful when working in dim areas, it can judge the circuit voltage according to the volume of the sound.

## Product Details

- **Brand:** TopDiag
- **Power Source:** Battery Powered
- **Style:** P100
- **Color:** Black
- **Item Weight:** 1.9 Pounds

## Images

![Circuit Tester Automotive, Power Circuit Probe Tester, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, P100 - Image 1](https://m.media-amazon.com/images/I/71gVTomuHLL.jpg)

## Available Options

This product comes in different **Style** options.

## Frequently Bought Together

- Circuit Tester Automotive, Power Circuit Probe Tester, Circuit Breaker Finder, Test Light Automotive with 40FT Cable, Car Fuse Tester, AC DC 12V 24V Car Diagnostic Tool, Topdiag P100
- WINAMOO Automotive Test Light with 3-48V LED Digital Voltage Display, Auto Circuit Tester with Voltmeter & Dual Color Polarity Indicate, Electric Test Pen w/Stainless Probe for Car/Truck/SUV Checker
- 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)

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-01-31*