---
product_id: 545543430
title: "YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display"
brand: "yojock"
price: "3 zł"
currency: PLN
in_stock: false
reviews_count: 13
url: https://www.desertcart.pl/products/545543430-yojock-usb-tester-multimeter-digital-4-30v-0-6-5a
store_origin: PL
region: Poland
---

# 4-30V voltage range 0.96-inch IPS color display 0-999999mAh capacity tracking YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display

**Brand:** yojock
**Price:** 3 zł
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Charge Smarter, Test Faster, Stay Ahead.

## Quick Answers

- **What is this?** YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display by yojock
- **How much does it cost?** 3 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/545543430-yojock-usb-tester-multimeter-digital-4-30v-0-6-5a)

## 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

- • **Vivid IPS Display:** Crystal-clear 0.96-inch color screen delivers 4-digit accuracy for instant, detailed diagnostics.
- • **Compact Powerhouse:** Sleek, pocket-sized aluminum alloy design built for professionals on the move.
- • **Precision Power Insights:** Real-time voltage (4-30V) & current (0-6.5A) monitoring for ultimate device care.
- • **Memory That Works For You:** Stores up to 9 groups of charging data even after power-off—never lose track of your device’s health.
- • **Next-Level Charging Intelligence:** Supports QC3.0, Super VOOC & multiple fast charge protocols to decode your charger’s true potential.

## Overview

The YOJOCK USB Tester MX18L is a compact, professional-grade multimeter designed for real-time monitoring of voltage (4-30V), current (0-6.5A), power, and capacity with a vibrant 0.96-inch IPS color display. It supports advanced fast charging protocols like QC3.0 and Super VOOC, features intelligent memory to store up to 9 charging sessions, and offers precise diagnostics to ensure optimal device and charger performance—perfect for tech-savvy professionals and electronic enthusiasts.

## Description

YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display: desertcart.com: Tools & Home Improvement

Review: Great little tool to have. - This works great and it's pretty accurate when it comes to current draw. It's a nice quick check to see what USB devices are drawing. Also checks to see that USB power sources are at the correct voltage level and don't drop excessively when something is connected to it. It's great because you put it in line and anything you plug in it immediately shows you real time voltage and current. You can also freeze it and save it.
Review: pretty nice! - I just wanted a usb tester to check how much some devices draw when charging, and this little donk fits the bill nicely. Pretty clean and easy to read display, seems accurate, and, well, it works! What more can you ask for? Nice case to protect the display is also included, so it's convenient to toss in with my cables, etc. so I always have it available. Happy.

## Features

- Upgraded USB Tester: Real-time detection of the State of Charge of the Appliance, Voltage, Current, Power, Capacity and other indicators. YOJOCK Testers are widely used in the quality inspection of 3C digital peripheral products, and are the first choice for digital gamers and electronic enthusiasts.
- Wide Applicability: This USB Power Meter Measuring voltage: 4V-30V; measuring current: 0-6.5A. Supports QC2.0, QC3.0, iPhone 2.4A/2.1A/1A/0.5A, Android DCP/AFC, FCP(9V/2A)/SCP(4.5V/5A), Super VOOC fast charge protocol identification, let you know the charging status of the phone. Support for high current testing, support USB3.0 interface mobile hard disk and U disk test.
- Power-off Storage, Measuring Data is Guaranteed: This USB Tester has a power-off storage function, which can store capacity and power data when the mobile power supply is powered off, which is convenient for subsequent viewing and facilitates the measurement of the capacity and power of the mobile power supply.
- IPS LCD Display: Uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 4-bit accuracy for more accurate measurements.
- Measure The Quality of The Charger: Connect the same load, compare the no-load and load. The larger the voltage drop, the worse the charger capacity, the worse the quality. The voltage drop is not obvious or the voltage rises, the better the load capacity of this charger, the better the quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B96X5Z1S |
| Best Sellers Rank | #596,835 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #969 in Multi Testers |
| Brand | YOJOCK |
| Color | black |
| Date First Available | August 22, 2022 |
| Item Weight | 1.41 ounces |
| Item model number | YJ-USB01 |
| Manufacturer | YOJOCK |
| Maximum Operating Voltage | 30 Volts |
| Measurement Type | Ammeter, Multimeter |
| Min. Operating Voltage | 4 Volts |
| Package Dimensions | 9.13 x 7.01 x 0.55 inches |
| Power Source | Battery Powered |
| Style | Compact |

## Product Details

- **Brand:** YOJOCK
- **Color:** black
- **Item Weight:** 40 Grams
- **Power Source:** Battery Powered
- **Style:** Compact

## Images

![YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display - Image 1](https://m.media-amazon.com/images/I/51SGiCKB35L.jpg)
![YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display - Image 2](https://m.media-amazon.com/images/I/61ovMQnURRL.jpg)
![YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display - Image 3](https://m.media-amazon.com/images/I/518DWeuXUGL.jpg)
![YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display - Image 4](https://m.media-amazon.com/images/I/61LFwih0qVL.jpg)
![YOJOCK USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display - Image 5](https://m.media-amazon.com/images/I/61svtOTUZ9L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little tool to have.
*by T***K on September 5, 2024*

This works great and it's pretty accurate when it comes to current draw. It's a nice quick check to see what USB devices are drawing. Also checks to see that USB power sources are at the correct voltage level and don't drop excessively when something is connected to it. It's great because you put it in line and anything you plug in it immediately shows you real time voltage and current. You can also freeze it and save it.

### ⭐⭐⭐⭐⭐ pretty nice!
*by L***R on May 17, 2024*

I just wanted a usb tester to check how much some devices draw when charging, and this little donk fits the bill nicely. Pretty clean and easy to read display, seems accurate, and, well, it works! What more can you ask for? Nice case to protect the display is also included, so it's convenient to toss in with my cables, etc. so I always have it available. Happy.

### ⭐⭐⭐⭐ “Decent Tester, but Not Quite What I Needed”
*by M***N on December 30, 2024*

I purchased the YoJock USB Tester Multimeter to monitor my USB devices, and it worked as expected in terms of showing voltage and current. The digital display was clear, and the build quality seemed decent for the price. However, I ended up returning it because it didn’t offer the full range of features I needed for my projects. It’s a good option for basic testing but may not be suitable for more advanced needs. Overall, a solid product if you’re looking for something simple, but I needed something more specialized.

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**Shop now:** [https://www.desertcart.pl/products/545543430-yojock-usb-tester-multimeter-digital-4-30v-0-6-5a](https://www.desertcart.pl/products/545543430-yojock-usb-tester-multimeter-digital-4-30v-0-6-5a)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-04-22*