---
product_id: 525467161
title: "YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version)"
brand: "yojock"
price: "£10.58"
currency: GBP
in_stock: true
reviews_count: 5
category: "Yojock"
url: https://www.desertcart.co.uk/products/525467161-yojock-usb-c-tester-power-meter-4-30v-0-6
store_origin: GB
region: United Kingdom
---

# Power-off data storage 4-30V voltage range 0-6.5A current measurement YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version)

**Brand:** yojock
**Price:** £10.58
**Availability:** ✅ In Stock

## Summary

> ⚡ Empower your USB-C game with precision and speed — don’t get left behind!

## Quick Answers

- **What is this?** YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) by yojock
- **How much does it cost?** £10.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/525467161-yojock-usb-c-tester-power-meter-4-30v-0-6)

## Best For

- yojock enthusiasts

## Why This Product

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

## Key Features

- • **Smart Data Retention:** Power-off storage saves your capacity and energy data for seamless tracking and analysis anytime.
- • **Precision Power Insights:** Accurately measures voltage, current, capacity, and power for USB-C devices, ensuring you never miss a watt.
- • **Intuitive One-Button Control:** Cycle, rotate, or reset readings with simple clicks—effortless monitoring for busy pros.
- • **Wide Voltage & Current Range:** Handles 4V-30V and up to 6.5A, perfect for everything from casual charging to advanced battery testing.
- • **Universal Fast-Charge Compatibility:** Supports QC2.0/3.0/4.0 & Super VOOC protocols to keep your devices juiced at lightning speed.

## Overview

The YOJOCK USB C Tester is a compact, reliable digital multimeter designed for professionals and tech enthusiasts to measure voltage (4-30V), current (0-6.5A), power, capacity, and more on USB-C devices. It supports major fast-charging protocols, stores data even when powered off, and features an easy-to-use button interface, making it an essential tool for quality testing and performance monitoring.

## Description

Product description YOJOCK Upgraded USB TESTER - KWS-066C NOTE If it is powered by the USB A charger, the screen of USB Tester will light up without connecting charging device. If it is powered by a PD (Type-C) charger, it requires a charging device to be connected to light up the USB Tester Screen. Method of Operation Click the button once to switch screens in a cyclical manner. Double-click the button to rotate the displayed content. Press and hold the button (3 seconds): Clear all capacity(mAh), amount of electricity(mWh), and timing. Calibration Method If it is powered by the USB A charger, press and hold the button and then connect the power supply (no need to connect the load), the USB tester will automatically calibrate. If it is powered by a PD charger, press and hold the button and then connect the power supply (requires a load to be connected), the USB tester will automatically calibrate. Additional Notes Please note that under normal circumstances the USB tester will not power on without a device connected (host, charger, accessory, etc) at both ends. Package Included 1 x USB C Tester 1 x Storage Box 1 x User Manual Measuring Parameters Test the Maximum Output Current of the Charger The USB meter can test the highest current output of the Wireless Charger/ Wireless Charging Stand/Wireless Charging Pad. With power-off storage function, which is convenient for subsequent viewing. Test Capacity and Electric Energy of Power Bank Fully charge power bank firstly, then connect this USB C tester to it and reset the capacity and electric energy by long pressing. Then fully discharge with USB C meter by 5v load till power bank run out of its energy. The mAh shows is the real capacity of your power bank. Monitor The Charging Status in Real Time When powering the Type-C devices, connect a YOJOCK test meter to monitor the voltage, current, capacity, power, temperature and other technical parameter information in real time.

Review: Tested the tester and it tests - Used tester, checked, verified voltages, works great, found the charging issue and now ai know what parts to order to fix devices. Works as intended.. I mean it it literally has ONE job, it was kind of a low bar to begin with but it works fine.
Review: Piccolo e valido tester usbc - Viene fornito con un piccolo foglietto di istruzioni in inglese, tedesco e cinese, ma manca l'italiano. A sinistra in grande mostra Volt, Ampere e Watt, a destra il tempo di ricarica totale, i milliampere e i milliwatt totali e una freccia animata che indica la direzione di carica, tenendo premuto il tasto sul retro si azzerano i contatori. Il piccolo display ha il testo di colore bianco, ma è ben leggibile, ruota con un doppio click del bottone sul retro, con una pressione sola mostra i valori massimi raggiunti. Lo consiglio per chi ha semplici necessità per testare cavi o caricabatterie usb.

## Features

- Multi-function: This USB tester is designed to detect voltage, current, capacity, electric quantity, power, temperature, resistance, charging time and other data of the USB C devices, which is convenient for testing power supply and quality.
- Detect Various Fast Charging Protocols: The Type-C USB tester supports QC2.0/3.0/4.0 and Super VOOC protocol charging, but the name of the fast charging protocol will not be displayed on the USB tester.
- Measuring Data is Guaranteed: Power-off storage function that stores capacity and energy data when the mobile power is turned off, which is convenient for subsequent viewing and convenient for capacity energy measurement of mobile power.
- Wide Applicability: This USB C Tester Measuring voltage: 4V-30V; measuring current: 0-6.5A. YOJOCK Tester are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.
- Button Function: 1.Click the button once to switch screens in a cyclical manner; 2.Double-click the button to rotate the displayed content; 3.Press and hold the button (3 seconds): Clear all capacity, amount of electricity, and time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B99Z2GJK |
| Best Sellers Rank | #48,087 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #66 in Multi Testers |
| Brand | YOJOCK |
| Brand Name | YOJOCK |
| Color | Black/Silver |
| Compatible Devices | USB C devices |
| Customer Reviews | 4.4 out of 5 stars 1,397 Reviews |
| Included Components | USB C Tester |
| Item Weight | 40 Grams |
| Manufacturer | YOJOCK |
| Maximum Operating Voltage | 30 Volts |
| Measurement Type | Ammeter, Voltmeter |
| Min. Operating Voltage | 4 Volts |
| Minimum Operating Voltage | 4 Volts |
| Model | YJ-TC01 |
| Part Number | KWS-066C |
| Power Source | Usb |
| Specification Met | 3c |
| Style | USB C Tester |
| Style Name | USB C Tester |

## Product Details

- **Brand:** YOJOCK
- **Color:** Black/Silver
- **Item Weight:** 40 Grams
- **Power Source:** Usb
- **Style:** USB C Tester

## Images

![YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) - Image 1](https://m.media-amazon.com/images/I/618dV4sHrLL.jpg)
![YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) - Image 2](https://m.media-amazon.com/images/I/812hnVrGOkL.jpg)
![YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) - Image 3](https://m.media-amazon.com/images/I/71Hk-NdsBUL.jpg)
![YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) - Image 4](https://m.media-amazon.com/images/I/61XS1A6NGGL.jpg)
![YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Digital Multimeter, Type C Voltage and Current Tester Meter, Power Capacity, Working Time Ammeter Voltmeter USB Cable Charger Detector (Classic Version) - Image 5](https://m.media-amazon.com/images/I/612sM1kCwkL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tested the tester and it tests
*by B***S on November 13, 2024*

Used tester, checked, verified voltages, works great, found the charging issue and now ai know what parts to order to fix devices. Works as intended.. I mean it it literally has ONE job, it was kind of a low bar to begin with but it works fine.

### ⭐⭐⭐⭐⭐ Piccolo e valido tester usbc
*by I***O on August 29, 2024*

Viene fornito con un piccolo foglietto di istruzioni in inglese, tedesco e cinese, ma manca l'italiano. A sinistra in grande mostra Volt, Ampere e Watt, a destra il tempo di ricarica totale, i milliampere e i milliwatt totali e una freccia animata che indica la direzione di carica, tenendo premuto il tasto sul retro si azzerano i contatori. Il piccolo display ha il testo di colore bianco, ma è ben leggibile, ruota con un doppio click del bottone sul retro, con una pressione sola mostra i valori massimi raggiunti. Lo consiglio per chi ha semplici necessità per testare cavi o caricabatterie usb.

### ⭐⭐⭐⭐⭐ Praktisch und gut
*by I***E on March 7, 2026*

Gute Qualität und Verarbeitung, wird mit einer (schwer zu öffnenden🔒) Aufbewahrungsbox geliefert. Misst zuverlässig die Ladegeschwindigkeit und zeigt die Kapazität meiner Powerbank nach vollständiger Aufladung an. Jetzt sortiere ich die Kabel die nicht fürs Schnellladen geeignet sind aus. Für den Preis würde ich es wieder kaufen.

## Frequently Bought Together

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-25*