--- product_id: 469705512 title: "USB C Tester Power Meter 4-30V 0-6.5A Voltage and Current Tester Meter, USB Capacity, Temperature, Working Time Ammeter Voltmeter Power Bank Charger Detector (Classic Version)" brand: "yojock" price: "106 zł" currency: PLN in_stock: true reviews_count: 8 category: "Yojock" url: https://www.desertcart.pl/products/469705512-usb-c-tester-power-meter-4-30v-0-6-5a store_origin: PL region: Poland --- # Fast Charging Support Data Storage Feature Wide Voltage Range USB C Tester Power Meter 4-30V 0-6.5A Voltage and Current Tester Meter, USB Capacity, Temperature, Working Time Ammeter Voltmeter Power Bank Charger Detector (Classic Version) **Brand:** yojock **Price:** 106 zł **Availability:** ✅ In Stock ## Summary > 🔍 Discover the Power of Precision! ## Quick Answers - **What is this?** USB C Tester Power Meter 4-30V 0-6.5A Voltage and Current Tester Meter, USB Capacity, Temperature, Working Time Ammeter Voltmeter Power Bank Charger Detector (Classic Version) by yojock - **How much does it cost?** 106 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/469705512-usb-c-tester-power-meter-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 - • **Unleash Fast Charging:** Supports QC2.0/3.0/4.0 and Super VOOC protocols for lightning-fast charging. - • **Data at Your Fingertips:** Power-off storage function retains capacity and energy data for easy access. - • **User-Friendly Interface:** Easily switch screens and clear data with intuitive button functions. - • **Perfect for Tech Enthusiasts:** Ideal for quality inspection of digital devices and a must-have for gamers. - • **Versatile Voltage Measurement:** Accurately measures voltage from 4V to 30V and current up to 6.5A. ## Overview The YOJOCK USB C Tester Power Meter is a compact and versatile device designed for measuring voltage and current in USB-C connections. It supports various fast charging protocols and features a power-off storage function for data retention, making it an essential tool for digital enthusiasts and professionals alike. ## Description YOJOCK USB C Tester Power Meter 4-30V 0-6.5A Voltage and Current Tester Meter, USB Capacity, Temperature, Working Time Ammeter Voltmeter Power Bank Charger Detector (Classic Version) : desertcart.co.uk: DIY & Tools Review: Very useful tool - Love this little device. I had a lot of chargers and cables that all seemed to perform differently with different devices. With the aid of this tool, I was able to definitively ascertain and verify the capabilities of each charger and cable once and for all. Review: Great power monitor for a Raspberry Pi5 - I'm a keen experimenter with overclocking and added peripherals so was looking for a USB test meter to put in line with the PSU feeding my Raspberry Pi5. This has been absolutely perfect for the job. My only concern when ordering was the tiny font size used by the display, but it's absolutely pin sharp with an excellent contrast ratio making the small characters very easy to read. I believe I bought this around 5 months ago, and it's been in 24/7 use since the day it arrived without a single hiccup, and there are no signs of any display burn-in. Highly recommended. ## Features - Detect Various Fast Charging Protocols: The Type-C USB tester supports QC2.0/3.0/4.0, Super VOOC and supports electrical signal monitoring during PD2.0/3.0 fast charging protocol, meeting the needs of various mobile phone users. - 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. - Note: The button of this usb tester will make a sound when it is shaken, which is not a product defect. This is an adjustment to be made to quickly double-click the button, which is a normal situation. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B99Z2GJK | | Best Sellers Rank | 69,757 in DIY & Tools ( See Top 100 in DIY & Tools ) 159 in Voltage Testers | | Brand | YOJOCK | | Colour | Black | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 1,369 Reviews | | Included Components | USB C Tester | | Item Weight | 40 Grams | | Item weight | 40 Grams | | Manufacturer | YOJOCK | | Manufacturer Part Number | KWS-066C | | Maximum Operating Voltage | 30 Volts | | Measurement Type | Ammeter, Voltmeter | | Min. Operating voltage | 4 Volts | | Minimum Operating Voltage | 4 Volts | | Model Number | YJ-TC01 | | Power Source | Battery Powered | | Power source | Battery Powered | | Specification Met | energy | | Style | Compact | | Style Name | Compact | | Unit Count | 1.0 count | ## Product Details - **Brand:** YOJOCK - **Power source:** Battery Powered - **Style:** Compact - **Colour:** Black - **Item weight:** 40 Grams ## Images ![USB C Tester Power Meter 4-30V 0-6.5A Voltage and Current Tester Meter, USB Capacity, Temperature, Working Time Ammeter Voltmeter Power Bank Charger Detector (Classic Version) - Image 1](https://m.media-amazon.com/images/I/618dV4sHrLL.jpg) ## Questions & Answers **Q: With some chargers, no current is passed on, the display remains dark. What could be the reason?** A: The output and input of this USB tester should be connected at same time, so that the screen lights up. Make sure one end is connected to the charger and the other end is connected to the load. **Q: Does the device save data (charged mah) after being unplugged?** A: Yes, this USB tester has auto save function when power off. The saved data can be read on the next connection. **Q: What should I do if I receive a damaged product?** A: Our goods arrive at the Amazon warehouse after long-distance international transportation, and there is inevitably a certain defect rate. If you receive a damaged product, you can contact our customer service through Amazon, we will reply you within 24 hours and provide you with a satisfactory solution. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very useful tool *by T***N on 29 December 2025* Love this little device. I had a lot of chargers and cables that all seemed to perform differently with different devices. With the aid of this tool, I was able to definitively ascertain and verify the capabilities of each charger and cable once and for all. ### ⭐⭐⭐⭐⭐ Great power monitor for a Raspberry Pi5 *by J***T on 25 July 2024* I'm a keen experimenter with overclocking and added peripherals so was looking for a USB test meter to put in line with the PSU feeding my Raspberry Pi5. This has been absolutely perfect for the job. My only concern when ordering was the tiny font size used by the display, but it's absolutely pin sharp with an excellent contrast ratio making the small characters very easy to read. I believe I bought this around 5 months ago, and it's been in 24/7 use since the day it arrived without a single hiccup, and there are no signs of any display burn-in. Highly recommended. ### ⭐⭐⭐⭐⭐ No problems. Plugs into my short-ish universal charger USBC socket *by A***R on 28 February 2026* Works fine on my iPad pro showing charging at 15V 1.2A. The other meter I've got has a short USBC plug for some reason and won't connect to the charger when plugged in. Which is why I got this one. ## Frequently Bought Together - 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) - Eversame 2 in 1 Type C USB Tester Color Screen LCD Digital Multimeter, USB C Voltage Current Voltmeter Amp Volt Ammeter Detector USB Cable Charger Indicator DC3.6-30V/0-5.1A - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/469705512-usb-c-tester-power-meter-4-30v-0-6-5a](https://www.desertcart.pl/products/469705512-usb-c-tester-power-meter-4-30v-0-6-5a) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-08*