---
product_id: 682939363
title: "ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester"
brand: "chargerlab"
price: "916.88 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Charger Lab"
url: https://www.desertcart.tn/products/682939363-chargerlab-power-z-km003c-portable-usb-c-fast-charge-tester
store_origin: TN
region: Tunisia
---

# Supports PD3.1 fast charging up to 240W 1.54-inch high-contrast LCD with gravity rotation Dual USB-C ports + HID for versatile connectivity ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester

**Brand:** chargerlab
**Price:** 916.88 DT
**Availability:** ✅ In Stock

## Summary

> ⚡ Charge smarter, test faster, lead the pack!

## Quick Answers

- **What is this?** ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester by chargerlab
- **How much does it cost?** 916.88 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/682939363-chargerlab-power-z-km003c-portable-usb-c-fast-charge-tester)

## Best For

- chargerlab enthusiasts

## Why This Product

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

## Key Features

- • **Data-Driven Insights:** Access up to 10 million data points with PC software for deep diagnostics.
- • **Crystal-Clear Display:** 1.54-inch gravity-rotating LCD ensures you never miss a detail.
- • **Powerhouse Performance:** ARM Cortex M4 + 20-bit ADC deliver ultra-precise voltage & current readings.
- • **All-in-One USB-C Analyzer:** Dual USB-C ports plus HID interface for seamless PC integration and data retrieval.
- • **Next-Gen Fast Charge Testing:** Harness PD3.1 & QC5.0 protocols for cutting-edge power analysis.

## Overview

The ChargerLAB Power-Z KM003C is a sleek, portable USB-C fast charge tester featuring PD3.1 and QC5.0 support, a large 1.54-inch gravity-rotating LCD, and dual USB-C ports with HID connectivity. Powered by an ARM Cortex M4 processor and 20-bit ADC, it delivers precise voltage, current, and protocol analysis up to 240W. Ideal for professionals demanding accurate, real-time power diagnostics with advanced PC software integration.

## Description

Product description As the upgraded version of USB PD3.0 protocol, the new USB PD3.1 protocol can support up to 48V, And the charging power can reach 240W. According to the documents from USB-IF, the USB PD3.1 can support extended power range (EPR) of 28V, 36V, 48V and three sets of adjustable voltage supply (AVS). Additionally, starting from version 1.9.2, KM003C has added support for the latest SPR AVS under the PD 3.2 protocol.

Review: Does the job. I recommend! - Does the job to tell what your USB-C to USB-C really is. Is it a pure USB x or a Thunderbolt 3 or 4? This device will tell you. Also allows to make precise power consumption measurement over a period of time. Kudos to the manufacturer. Such a device is not easy to find. I recommend.
Review: Useful USB C power meter - Useful USB C power/charging meter. Provides useful information about charging protocols iavailable and in use. Precision ifmeasurments is ridiculous, far exceeds devices accuracy!

## Features

- PD3.1: This is the official Power Z product page, created by ChargerLAB. This tester is the latest version and can support PD3.1.
- Larger display: It has a larger LCD display (1.54 inches) than the previous generation and can support gravity rotation. The high-contrast user interface makes it easier to get what you need.
- Multiple tests: This tester can support multiple tests, including voltage/current detection, capacity/energy test, e-marker test, PDO test, protocol test, etc.
- More powerful: This tester integrates an ARM Cortex M4 processor and a 20-bit ADC. It supports up to 50V, 6A (240W in PD) and a USB PD protocol analyzer. The PC software can retrieve 10 million data at the same time.
- Designed for USB-C: It is equipped with two USB-C ports for power input and output and an additional HID port (USB-C) for connecting to PC and power supply.
- Technical support: This model supports English and Chinese. Please visit our official website to get the manual and PC software (for update and further analysis).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJ24PVNJ |
| ASIN  | B0BJ24PVNJ |
| Best Sellers Rank | #63,345 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #134 in Voltage Testers |
| Brand Name | ChargerLAB |
| Color | Silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (221) |
| Customer reviews | 4.6 4.6 out of 5 stars (221) |
| Date First Available  | 17 September 2023 |
| Included Components | Super capacitor |
| Item Dimensions | 35 x 9 x 36 millimeters |
| Item Weight | 0.58 Ounces |
| Item model number  | KM003C |
| Manufacturer | ChargerLAB |
| Manufacturer  | ChargerLAB |
| Measurement Type | Voltmeter, ammeter |
| Model | KM003C |
| Part Number | KM003C |
| Power Source | Usb Type-c |
| Product Dimensions  | 3.55 x 0.87 x 3.65 cm; 16.44 g |
| Specification Met | FCC |
| Style Name | Modern |
| UPC | 756166474123 |

## Product Details

- **Brand:** ChargerLAB
- **Colour:** Silver
- **Item weight:** 0.58 Ounces
- **Power source:** Usb Type-c
- **Style:** Modern

## Images

![ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester - Image 1](https://m.media-amazon.com/images/I/61TMq46q3bL.jpg)
![ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester - Image 2](https://m.media-amazon.com/images/I/613-sQhEiYL.jpg)
![ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester - Image 3](https://m.media-amazon.com/images/I/71bDwV1qTyL.jpg)
![ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester - Image 4](https://m.media-amazon.com/images/I/613EiHtMGfL.jpg)
![ChargerLAB Power-Z KM003C Portable USB-C Fast Charge Tester PD3.1 QC5.0 Digital Voltmeter & Ammeter Current Tester - Image 5](https://m.media-amazon.com/images/I/61mEaV23F-L.jpg)

## Questions & Answers

**Q: I need to test the power on pc ports while using 20gbps external drives.  will this support that?  if not how high will it go?**
A: Yes, it works.
I tested it with a Lexar NM620 512GB M.2 NVMe SSD in an Silverstone MS12 external USB 3.2 Gen 2x2 20Gbps enclousure.

Normaly i get 2100MBps read/write speeds.
When i use the Power-Z to measure the power consumption i get read speeds about 1600MBps and 2000MBps write speed.

**Q: Does this test for faulty/slow (usb 2.0) cables aswell? i need something to verify usb-c cables are 5/10/20/40gbps.**
A: The tester can detect the E-Marker Chip of the cable, which can display its specs info, such as charging speed and data transmission speed.
But most USB 2.0 is not equipped with E-Marker Chip, so the tester cannot test it.

**Q: Can i use a usb-a adapter to test usb-a ports?**
A: It can support testing USB-A devices using a USB-C to USB-A cable.
You can also use a USB-A adapter, but test results may be affected by the adapter.

**Q: How to test chargers with attached cable? Is there a male to female adapter included?**
A: Firstly, there is no male to female adaptor included, but you can also test the charger with attached cable.
Just put the tester between the load (like your laptops, phones) and the attached USB-C cable.
Or simply insert the attached cable into the USB-C Female (Receptacle) of KM003C and connect the tester to an independent power supply.
For more tech support info, you can visit: https://www.chargerlab.com/km003c-km002c-technical-support/

## Customer Reviews

### ⭐⭐⭐⭐⭐ Does the job. I recommend!
*by F***E on 14 May 2025*

Does the job to tell what your USB-C to USB-C really is. Is it a pure USB x or a Thunderbolt 3 or 4? This device will tell you. Also allows to make precise power consumption measurement over a period of time. Kudos to the manufacturer. Such a device is not easy to find. I recommend.

### ⭐⭐⭐⭐⭐ Useful USB C power meter
*by S***T on 10 May 2026*

Useful USB C power/charging meter. Provides useful information about charging protocols iavailable and in use. Precision ifmeasurments is ridiculous, far exceeds devices accuracy!

### ⭐⭐⭐⭐⭐ 5-Sterne-Rezension für den ChargerLAB POWER-Z KM003C
*by H***. on 21 October 2025*

Ich bin absolut begeistert vom ChargerLAB POWER-Z KM003C! Dieses kleine Gerät (gerade mal ca. 4×4 cm) hat es wirklich in sich. Trotz seiner kompakten Größe ist es ein professionelles Messinstrument, das nahezu alle gängigen Schnelllade-Protokolle und -Modi erkennt und analysieren kann – darunter PD2.0/3.1, QC2.0–5, PPS, UFCS, VOOC, SCP, FCP und viele mehr. Ich habe den Tester mit dem "REVODATA Gigabit PoE zu USB-C Konverter Adapter (Typ-C Ausgang Strom & Ethernet 2 in 1, bis 45 W, 5–20 V)" getestet – und der POWER-Z hat alle unterstützten Lade-Modi auf einmal erkannt! Das zeigt, wie leistungsfähig und präzise die interne Protokollerkennung funktioniert. Das Display ist hell, die Bedienung intuitiv, und über den HID-Port kann man ihn sogar am PC mit der Software auslesen oder Firmware-Updates durchführen. Die Protokoll-Erkennung funktioniert sogar ohne angeschlossenes Gerät, wenn man den Tester separat mit Strom versorgt – einfach genial. Zur Bedienungsanleitung: Es gibt einen QR-Code auf dem Gerät, der zur offiziellen Anleitung führt – diese ist allerdings nur auf Englisch. Mein Tipp: einfach die Datei als PDF oder Markdown herunterladen, bei ChatGPT hochladen, und man bekommt alle Erklärungen direkt auf Deutsch. Ein bisschen technisches Verständnis sollte man allerdings schon mitbringen. ⚡ Fazit: Ein echtes Power-Tool für alle, die Ladegeräte, Kabel oder Schnelllade-Protokolle testen möchten. Klein, präzise, robust und seinen Preis absolut wert. Klasse Gerät – uneingeschränkte Kaufempfehlung!

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-21*