--- product_id: 469705512 title: "USB C Tester KWS-066C" brand: "yojock" price: "4148 som" currency: KGS in_stock: true reviews_count: 13 category: "Yojock" url: https://www.desertcart.kg/products/469705512-usb-c-tester-kws-066c store_origin: KG region: Kyrgyzstan --- # Power-off data storage 4-30V voltage range 0-6.5A current measurement USB C Tester KWS-066C **Brand:** yojock **Price:** 4148 som **Availability:** ✅ In Stock ## Summary > ⚡ Charge smarter, not harder — never miss a watt! ## Quick Answers - **What is this?** USB C Tester KWS-066C by yojock - **How much does it cost?** 4148 som with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/469705512-usb-c-tester-kws-066c) ## 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 charging stats for effortless tracking anytime. - • **User-Friendly Interface:** One-button control cycles screens, rotates data, and resets with intuitive clicks. - • **Trusted by Tech Enthusiasts:** Top choice for gamers & digital pros ensuring your gear charges optimally. - • **Accurate Power Metrics On-the-Go:** Measures voltage, current, capacity, temperature & working time with precision. - • **Universal Fast Charging Compatibility:** Supports QC2.0/3.0/4.0, Super VOOC & PD2.0/3.0 protocols for all your devices. ## Overview The YOJOCK USB C Tester Power Meter is a compact, professional-grade device designed to measure voltage (4-30V), current (0-6.5A), capacity, temperature, and working time for USB-C devices. It supports multiple fast charging protocols including QC and PD standards, stores data even when powered off, and features an easy-to-use button interface. Ideal for tech-savvy users and quality inspectors, it ensures precise monitoring of power banks, chargers, and USB peripherals. ## 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: Easy and quick to use - YOJOCK USB C TESTER. Fast delivery. Securely packaged. Easily readable, uncomplicated display. I've used this for only a few days. It's shown some interesting results in the changing voltage and current levels from different chargers to sundry connected devices, so, for its performance so far, I'll give it five stars. Review: Good test meter - Nice instrument to use and gives plenty of useful information. ## 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 | 36,682 in DIY & Tools ( See Top 100 in DIY & Tools ) 50 in Voltage Testers | | Brand | YOJOCK | | Colour | Black | | Compatible Devices | USB C Devices | | Country Of Origin | China | | Customer Reviews | 4.4 out of 5 stars 1,198 Reviews | | Included Components | USB C Tester | | 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 | | Number of Items | 1 | | Number of Packs | 1 | | Power Source | Corded Electric | | Power source | Corded Electric | | Specification Met | energy | | Specification met | energy | | Style | Compact | | Style Name | Compact | | Unit Count | 1.0 count | ## Product Details - **Brand:** YOJOCK - **Colour:** Black - **Item weight:** 40 Grams - **Power source:** Corded Electric - **Style:** Compact ## Images ![USB C Tester KWS-066C - 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 ### ⭐⭐⭐⭐⭐ Easy and quick to use *by A***E on 22 March 2026* YOJOCK USB C TESTER. Fast delivery. Securely packaged. Easily readable, uncomplicated display. I've used this for only a few days. It's shown some interesting results in the changing voltage and current levels from different chargers to sundry connected devices, so, for its performance so far, I'll give it five stars. ### ⭐⭐⭐⭐⭐ Good test meter *by M***T on 19 May 2026* Nice instrument to use and gives plenty of useful information. ### ⭐⭐⭐⭐⭐ 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. ## 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.kg/products/469705512-usb-c-tester-kws-066c](https://www.desertcart.kg/products/469705512-usb-c-tester-kws-066c) --- *Product available on Desertcart Kyrgyzstan* *Store origin: KG* *Last updated: 2026-09-07*