--- product_id: 632788940 title: "USB Tester Meter, USB C Power Meter, Current Meter, 2-in-1 Digital Multimeter, Voltage Voltmeter, Current, Charging Current, Power Capacity, Working Time Detector Ammeter with Type-C Adapter (A3)" brand: "yojock" price: "421 zł" currency: PLN in_stock: true url: https://www.desertcart.pl/products/632788940-usb-tester-meter-usb-c-power-meter-current-meter-2 store_origin: PL region: Poland --- # 0-8A current range 360° rotatable 1.44” LCD display Measures power capacity & energy USB Tester Meter, USB C Power Meter, Current Meter, 2-in-1 Digital Multimeter, Voltage Voltmeter, Current, Charging Current, Power Capacity, Working Time Detector Ammeter with Type-C Adapter (A3) **Brand:** yojock **Price:** 421 zł **Availability:** ✅ In Stock ## Summary > ⚡ Charge smarter, not harder — never miss a watt! ## Quick Answers - **What is this?** USB Tester Meter, USB C Power Meter, Current Meter, 2-in-1 Digital Multimeter, Voltage Voltmeter, Current, Charging Current, Power Capacity, Working Time Detector Ammeter with Type-C Adapter (A3) by yojock - **How much does it cost?** 421 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/632788940-usb-tester-meter-usb-c-power-meter-current-meter-2) ## 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 - • **Robust & Reliable:** Gold-plated contacts resist wear and ensure stable, scratch-proof connections. - • **Smart Safety Shutdown:** Auto power-off with data save protects your devices from sudden power interruptions. - • **360° Rotatable Display:** Read measurements comfortably from any angle with a crisp 1.44-inch color LCD screen. - • **Universal Compatibility:** Supports USB-A, Type-C, QC2.0/QC3.0 fast charging modes across all your devices. - • **Precision Power Insights:** Real-time voltage (4.5-24V), current, and power tracking for ultimate charging clarity. ## Overview The YOJOCK FT-A3 USB Tester Meter is a compact, multifunctional digital multimeter designed for professionals and tech enthusiasts. It accurately measures voltage (4.5-24V), current (up to 8A), power, and capacity while supporting fast charging protocols like QC2.0 and QC3.0. Featuring a 1.44-inch rotatable color LCD and gold-plated USB contacts, it ensures precise readings and durability. Ideal for testing chargers, cables, power banks, and USB devices, it also includes smart safety features to protect your gear during charging. ## Description USB Tester Meter, USB C Power Meter, Current Meter, 2-in-1 Digital Multimeter, Voltage Voltmeter, Current, Charging Current, Power Capacity, Working Time Detector Ammeter with Type-C Adapter (A3) ## Features - Multifunctional USB tester: This USB tester supports micro USB or Type-C port and fast charging mode detection, it can detect QC2.0/QC3.0, voltage/current/power/capacity detection, cable impedance measurement. A must-have gadget checks the charging performance (charging speed and quality) of the output wall/car and USB charging cable. It can also be used to test the capacity and electrical energy of the power bank. Measuring voltage: 4.5V-24.0V; measuring current: 0-8.0A - Wide range of applications: Widely used in the quality testing of digital devices with USB-A and Type-C peripherals. Ideal for testing and determining the actual performance values of different chargers and devices, e.g. PC/laptop/desktop computer/mobile phone/power bank/charger/discharge charger/car charger/cable. With this tester, you can clearly see what happens when charging various USB devices, from iPhones to tablets to batteries. - Flexible colour display interface: with a 1.44 inch LCD screen, 4 control buttons and 5 connection ports. Supports 360 degree rotation of the screen to allow reading at any angle. You can rotate the screen by pressing the button corresponding to the horizontal menu bar. When connected to different digital devices at any angle, positive readings can also be determined, making the measurement more comfortable - Unbeatable design: this USB power meter with gold-plated USB contacts has a strong coating to prevent scratches, stains and damage. This upgraded USB Type-C tester can detect safety and maximally protect the devices from damage. The output is automatically interrupted while the data is saved in the event of a sudden power off. - Important note: If the PD power supply is not connected to the fast charger, the power supply is not provided by default. Both the charger and charger must support fast charging. Since the tester is a one-sided protocol design, please try to turn the Type-C cable over if the display does not light up and try again. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | YOJOCK | | Power Source | Corded Electric | | Style | Digital | | Min. Operating Voltage | 4.5 Volts | | Measurement Type | Ammeter, Voltmeter, Multimeter | | Manufacturer | YOJOCK | | Model number | FT-A3 | | Number of Memory Sticks | 1 | | Item Weight | 40 g | | Package Dimensions | 8.4 x 7.3 x 1.9 cm; 40 g | | Item model number | FT-A3 | | Included Components | USB Tester | | Are batteries included? | No | ## Product Details - **Brand:** YOJOCK - **Power Source:** Corded Electric - **Style:** Digital - **Min. Operating Voltage:** 4.5 Volts - **Measurement Type:** Ammeter, Voltmeter, Multimeter ## Images ![USB Tester Meter, USB C Power Meter, Current Meter, 2-in-1 Digital Multimeter, Voltage Voltmeter, Current, Charging Current, Power Capacity, Working Time Detector Ammeter with Type-C Adapter (A3) - Image 1](https://m.media-amazon.com/images/I/714JOP-3ozL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - YOJOCK USB Tester Meter USB C Voltage Tester, 2-in-1 Digital USB Current Watt Multimeter, PD Battery Power Capacity Ammeter Voltmeter with Type C Connector - Treedix USB Cable Tester Board USB Cable Checker Data Wire with Acrylic Case Charging Test Data Line Type-C Micro Type A Type B - FNIRSI USB Tester 4-28V 7A LCD USB A&C Voltage Current Power Tester Multimeter, Fast Charge Detection Trigger Capacity Ripple Measurement, PD2.0/PD3.0,QC2.0/QC3.0 --- ## 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/632788940-usb-tester-meter-usb-c-power-meter-current-meter-2](https://www.desertcart.pl/products/632788940-usb-tester-meter-usb-c-power-meter-current-meter-2) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-18*