---
product_id: 559751487
title: "P100 Power Probe AC DC Voltage Electric Tester Car Diagnostic Tool for All Car Circuit Tester Automotive 40Ft Cable 12V 24V Electrical Circuit Tester for Truck Boat Motorcycle"
brand: "topdiag"
price: "¥22560"
currency: JPY
in_stock: true
reviews_count: 5
category: "Top Diag"
url: https://www.desertcart.jp/products/559751487-p100-power-probe-ac-dc-voltage-electric-tester-car-diagnostic
store_origin: JP
region: Japan
---

# AC/DC voltage testing up to 30V 20ft extension cable for flexible diagnostics Built-in circuit breaker for overload protection P100 Power Probe AC DC Voltage Electric Tester Car Diagnostic Tool for All Car Circuit Tester Automotive 40Ft Cable 12V 24V Electrical Circuit Tester for Truck Boat Motorcycle

**Brand:** topdiag
**Price:** ¥22560
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose like a pro, save time, and never get stranded again!

## Quick Answers

- **What is this?** P100 Power Probe AC DC Voltage Electric Tester Car Diagnostic Tool for All Car Circuit Tester Automotive 40Ft Cable 12V 24V Electrical Circuit Tester for Truck Boat Motorcycle by topdiag
- **How much does it cost?** ¥22560 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/559751487-p100-power-probe-ac-dc-voltage-electric-tester-car-diagnostic)

## 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

- • **Safety-First Design:** Internal circuit breaker guards against overloads, keeping you and your device safe
- • **Extended Reach Freedom:** 20ft durable cable lets you diagnose every corner of your vehicle hassle-free
- • **Multifunctional Power Probe:** Test voltage, resistance, continuity & polarity with one sleek tool
- • **Universal Vehicle Compatibility:** Perfect for cars, trucks, boats & motorcycles supporting 6-30V electrical systems
- • **Component Activation & Fault Detection:** Quickly locate shorts, bad grounds, and test component functionality like a pro

## Overview

The Topdiag P100 Power Probe is a professional-grade automotive circuit tester designed for 6-30V systems. It offers multifunctional testing capabilities including AC/DC voltage, resistance, continuity, and polarity checks. Featuring a built-in circuit breaker for overload protection and a 20ft extension cable, it ensures safe, accurate, and flexible diagnostics across cars, trucks, boats, and motorcycles. Backed by a 1-year warranty and trusted by thousands, it’s the essential tool for any vehicle owner or technician aiming to reduce diagnostic time and increase reliability.

## Description

The P100 power circuit probe tester is an essential tool for vehicle owners, which is the best electrical tester to reduce the diagnostic time on all 6 to 30V vehicle electrical systems.

Review: Helped diagnose starter issue old vs new starter, new starter found defective thanks to this tool. Very accurate! Pretty easy to use.
Review: muy buena opción y alternativa a power probe aprovechen el precio! saludos desde guanajuato México

## Features

- 【P100 Circuit Tester】P100 Circuit Tester is one of the multifunctional automotive power tools that can be used to test AC/DC voltage, resistance, continuity, polarity and connections, etc. need to ask the technician for help.
- 【Circuit Breaker & Safety Design】This automotive circuit tester is protected against short circuit and overload, its internal circuit breaker will disarm if it becomes overloaded, the circuit breaker is a valuable testing tool as well as a safety measure to protect the tool from overload.
- 【Component Activation Function】You can use this electrical circuit tester to activate components, such as continuity test, bad ground detection, short circuit location, polarity test, etc. Before testing a circuit or component, you should do a quick self-test to make sure your car's circuit tester is in good condition.
- 【20ft Extension Cable】 The automotive electric tester with durable and safe 20 foot extension cord, which allows you to operate freely around the vehicle. And this wire tester has less deviation and more accurate test data, helps vehicle owners know the condition of their vehicles.
- 【Wide Application】Our automotive power probe can be widely used as car fuse tester, power tester, circuit breaker locator, short finder, automotive multimeter, etc. It also features professional diagnostic features and supports multiple languages.
- 【100% SATISFACTION GUARANTEE】 We are committed to our P100 Energy Tester directly from Oringal TopDiag factory and provide 1 year warranty, full refund or new replacement within 30 days of services for you. If you have any questions or are unsatisfied with our power probe kit, please feel free to contact us and we will get back to you within 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BZD7PGZR |
| ASIN  | B0BZD7PGZR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #144,695 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #199 in Circuit Testers |
| Color | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (414) |
| Customer reviews | 4.6 4.6 out of 5 stars (414) |
| Date First Available | 7 September 2023 |
| Date First Available  | 7 September 2023 |
| Included components | 1 * P100/1 * Probe / 2 * Battery Clip |
| Item Weight | 1.11 Kilograms |
| Item model number | Topdiag P100 |
| Item model number  | Topdiag P100 |
| Manufacturer | Topdiag |
| Manufacturer  | Topdiag |
| Part number | Topdiag P100 |
| Power source type | AC/DC |
| Product Dimensions | 24.99 x 8.51 x 19 cm; 1.11 kg |
| Product Dimensions  | 24.99 x 8.51 x 19 cm; 1.11 kg |
| Style | professional |
| Voltage | 12 Volts |

## Product Details

- **Brand:** TopDiag
- **Colour:** Black
- **Item dimensions L x W x H:** 25 x 8.5 x 19 centimeters
- **Power source:** AC/DC
- **Style:** professional

## Images

![P100 Power Probe AC DC Voltage Electric Tester Car Diagnostic Tool for All Car Circuit Tester Automotive 40Ft Cable 12V 24V Electrical Circuit Tester for Truck Boat Motorcycle - Image 1](https://m.media-amazon.com/images/I/7101T9G9SDL.jpg)

## Questions & Answers

**Q: What is the voltage range for the TopDiag P100 Power Circuit Probe Kit?**
A: This kit is primarily designed for 12V/24V power supplies and is also compatible with vehicle electrical systems operating between 6V and 30V. It covers testing requirements for various vehicle types, including 12V passenger cars and 24V trucks.

**Q: What core testing functions does the TopDiag P100 offer?**
A: It features a comprehensive suite of core testing functions, including AC/DC voltage testing, resistance testing, continuity testing, polarity detection, short circuit detection, ground connection testing, and trailer light testing.

**Q: Does this kit support multiple languages? Which languages are included?**
A: Yes, it supports multiple languages, including English, Spanish, Italian, Portuguese, German, French, Russian, Chinese, and more, making it easy for users with different language backgrounds to operate.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***1 on 26 December 2025*

Helped diagnose starter issue old vs new starter, new starter found defective thanks to this tool. Very accurate! Pretty easy to use.

### ⭐⭐⭐⭐⭐ Review
*by I***. on 29 November 2023*

muy buena opción y alternativa a power probe aprovechen el precio! saludos desde guanajuato México

### ⭐⭐⭐⭐ Review
*by D***S on 5 December 2023*

Muy bueno y rápido llego antes de la fecha pero el cable es muy corto no son 40ft y aparteel conector es fijo no se desconecta

## Frequently Bought Together

- Power Circuit Probe Kit, P100 Car Circuit Tester, 12V 24V Automotive Electrical Tool, 6-30V Vehicle Short Circuit Finder with 40ft Cable, Trailer Truck Voltage Current Detector
- JOREST 300Pcs Car Fuse Assortment Kit, 160 Mini Blade Fuses Automotive + 90 Standard Auto Fuses + 50 Micro + Puller – Replacement for RV Camper Boat Truck (2Amp 3A 5A 7.5A 10A 15A 20A 25A 30A 35A 40A)
- 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-21*