---
product_id: 606720306
title: "KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester)"
brand: "kzyee"
price: "¥98746"
currency: JPY
in_stock: true
category: "Kzyee"
url: https://www.desertcart.jp/products/606720306-kzyee-km50-power-circuit-probe-kit-automotive-circuit-tester-fuel
store_origin: JP
region: Japan
---

# AC/DC Voltage & Current Built-in Work Light Fuel Injector Quick Test KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester)

**Brand:** kzyee
**Price:** ¥98746
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower Your Automotive Diagnostics Like a Pro!

## Quick Answers

- **What is this?** KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) by kzyee
- **How much does it cost?** ¥98746 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/606720306-kzyee-km50-power-circuit-probe-kit-automotive-circuit-tester-fuel)

## Best For

- kzyee enthusiasts

## Why This Product

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

## Key Features

- • **Power Boost Activation:** Energize components directly via positive/negative current delivery—no jumper bits needed.
- • **Intuitive Digital Display:** Switch test modes and view waveform data with a long-press for enhanced troubleshooting clarity.
- • **All-in-One Circuit Mastery:** Seamlessly test AC/DC voltage, resistance, frequency, and duty cycle with one sleek device.
- • **Bright Integrated Flashlight:** Illuminate your workspace effortlessly, ensuring no detail goes unnoticed in low light.
- • **Rapid Fuel Injector Diagnostics:** Instantly pinpoint injector issues with a dedicated, precision-tuned test mode.

## Overview

The KZYEE KM50 Power Circuit Probe Kit is a modern, battery-powered multimeter designed for professional-grade automotive electrical testing. It supports comprehensive AC/DC voltage, current, resistance, frequency, and fuel injector diagnostics with a digital display and built-in flashlight, enabling fast, accurate circuit troubleshooting without the hassle of jumper bits.

## Description

KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester)

## Features

- KZYEE KM50 Circuit Test Kit is an upgraded version of KM10 that performs all kinds of test modes such as DC Voltage, AC Voltage, Signal Frequency, Duty Cycle, Fuel Injection, Resistance and Diode
- Faster removal and diagnosing circuit conditions by changing the waveform display from digital screen for AC Voltage, Frequency, Duty Cycle, and Fuel Injection Tests by Long Press on the Mode Button for AC Voltage
- Activates electrical components and tests their functions without jumper bits - by pressing the rocker switch to deliver a positive or negative battery current to the tip to strengthen electrical components
- Fuel injection test is specially tuned for quick and easy injector circuit diagnosis. A quick connection to the circuit and the KM50 would like to view all required fuel injector test information
- The built-in flashlight is bright enough to illuminate your work area, and the torch and bell can be turned off by itself

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08CDF1SPJ |
| Brand Name | KZYEE |
| Customer Reviews | 4.5 4.5 out of 5 stars (570) |
| Item Weight | 0.48 Kilograms |
| Manufacturer | KZYEE |
| Measurement Type | Multimeter |
| Model | KZYEE-KM50 |
| Part Number | KZYEE |
| Power Source | Battery Powered |
| Style Name | Modern |

## Product Details

- **Brand:** KZYEE
- **Item weight:** 0.48 Kilograms
- **Measurement type:** Multimeter
- **Power source:** Battery Powered
- **Style:** Modern

## Images

![KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) - Image 1](https://m.media-amazon.com/images/I/51N-qtD-KHL.jpg)
![KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) - Image 2](https://m.media-amazon.com/images/I/51MnEJYmutL.jpg)
![KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) - Image 3](https://m.media-amazon.com/images/I/511D+eXhygL.jpg)
![KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) - Image 4](https://m.media-amazon.com/images/I/41BrppaOdCL.jpg)
![KZYEE KM50 Power Circuit Probe Kit, Automotive Circuit Tester Fuel Injector Test with AC DC Current Resistance Circuit Tester (Digital Voltage Tester, Multimeter, Short Finder, Battery Tester) - Image 5](https://m.media-amazon.com/images/I/41N3pTciXQL.jpg)

## Questions & Answers

**Q: What can the KM50 test, and does it work with 12V/24V vehicles?**
A: KM50 supports 12V/24V vehicle electrical systems with 7 modes: DC/AC Voltage, Frequency, Duty Cycle, Fuel Inject, Resistance and Diode. It also checks continuity, polarity, short circuits, bad grounds and components.

**Q: What can the KM50 Fuel Inject mode show?**
A: Fuel Inject mode shows injection time, injector supply voltage, ground voltage, reverse induced voltage and the control waveform in real time, helping you evaluate injector circuit behavior before deeper wiring or component checks.

**Q: an the KM50 activate motors, lights and other electrical components?**
A: Yes. Component Activation can apply positive power or ground through the probe tip to check whether supported electrical components respond, helping you narrow down whether the issue is in the component or the circuit before replacing parts.

**Q: Can the KM50 test sensor and signal circuits?**
A: Yes. KM50 supports signal circuit testing. Frequency and Duty Cycle modes can show digital data and live waveforms, helping you observe changing signals and identify abnormal circuit behavior beyond basic voltage checks.

**Q: Is the KM50 easy to use in dark areas, and does it have overload protection?**
A: Yes. LED lighting helps illuminate dark work areas, while the TFT display, red/green LEDs and buzzer provide clear feedback. An internal circuit breaker trips during overload to help protect the tester.

## Frequently Bought Together

- KZYEE KM50 (Upgrade of KM10) Power Circuit Probe Kit - 12V/24V Automotive Circuit Tester Current Probe with AC/DC Voltage/Resistance/Diode/Frequency/Duty Cycle/Fuel Injection, Activate Component
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-08*