--- product_id: 47139894 title: "YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black" brand: "brand: yomosi" price: "1.17 DT" currency: TND in_stock: false reviews_count: 7 url: https://www.desertcart.tn/products/47139894-yomosi-usb-digital-power-meter-tester-multimeter-current-and-voltage store_origin: TN region: Tunisia --- # DC 5.1A max current LCD display modes 30V voltage range YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black **Brand:** brand: yomosi **Price:** 1.17 DT **Availability:** ❌ Out of Stock ## Summary > πŸ”Œ Power Up Your Knowledge! ## Quick Answers - **What is this?** YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black by brand: yomosi - **How much does it cost?** 1.17 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/47139894-yomosi-usb-digital-power-meter-tester-multimeter-current-and-voltage) ## Best For - brand: yomosi enthusiasts ## Why This Product - Trusted brand: yomosi brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **🌟 Premium Display:** Bright LCD with low power consumption for clear readings. - β€’ **πŸ‘œ Portable Design:** Compact and lightweight for on-the-go testing. - β€’ **πŸ›‘οΈ Safety First:** Built-in smart system for over/low voltage protection. - β€’ **πŸ“ˆ Versatile Testing:** Test power banks, chargers, and cables with ease. - β€’ **πŸ” Uncover Charging Issues:** Easily detect USB charging problems with precision. ## Overview The YOMOSI USB Digital Power Meter Tester is a multifunctional device designed to monitor USB charging current, voltage, and capacity. With a maximum current of 5.1A and a voltage range of 30V, it features a premium LCD display and built-in safety mechanisms to protect your devices. Ideal for testing chargers, cables, and power banks, this portable tester is a must-have for tech-savvy professionals. ## Description YOMOSI Power Meter Tester -Each Power Meter tester from YOMOSI will be strictly tested by our QC Department, to prove the importance we set on quality. -Perfect for evaluating whether or not the computer, USB wall charger, USB car charger are outputting acceptable voltage and current range for the device you are connecting -This Power Meter Tester can plugs directly into any USB socket or cable, which displays on the screen the voltage, current and capacity -It provides you a rough estimate of the capacity of the device you are charging Specification -Input Voltage: 3V-30V -Input Current: 0-5.1A -Accuracy: +/- 1% -Display: LED, show voltage and current simultaneously -Maximum Capacity Value: 99999 mAh -Tester three dimensional size: 26.3*5.5*5.5mm Operation Introduction (1). The short press is the interface switch, and long press is battery capacity and other data reset; (2). In the main interface, five-press is the setting of automatic power outages and timing turn-off(Five-press in the main interface, the character in the lower right corner of the display stars flashing, choose three settings of ’AO.. / OFF / 1-24H’ by clicking or double-clicking, and when the flashing stops, it means the system saves the current settings automatically); (3). Six-press is Chinese/English interface conversion. Warm Tips -This power meter tester may not support fast charging for some type of smartphones and devices. -If any tester you bought from YOMOSI can’t display the correct parameters while testing your devices, please feel free to contact us firstly and we will provide quick respond and offer you good solution. Package Included 1 x Current Voltage Test Meter Easy-To-Reach Support Every product includes one year hassle-free guarantee with excellent after-sale service ## Features - [MULTIFUNCTIONAL USB TESTER]: USB Meter Tester is mainly used to detect USB charging current, voltage, discharge capacity, quantity of electric charge, power, timing and so on. Meanwhile multimeter USB detector can be applied to the Power Capacity Storage and Over/Low Voltage-current Protection. It allows you to find the charging problem of the USB cables, wall chargers, and car charges more easily. - [BUILT-IN MORE SAFETY]: Each USB meter tester has been built-in circuit with containing CW3002D chip for accelerating Large Current Fast Charging. Plus the Interior Smart System is designed to detect safety. The multimeter tester also supports QC 2.0/3.0 high voltage test, with the function of cutting off automatically when it’s fully charged, to protect your valuable devices effectively. - [PREMIUM LCD DISPLAY]: Crafted from high-grade LCD monitor with low power consumption feature, bright and clear enough to monitor the parameters on the screen. Comes with three various display modes for your choosing. Ideally be broadly applicable to test capacity and electric energy of power bank; test the maximum output current of the charger; and test charging speed and quality of data cable and charging cable. - [WIDE TESTING RANGE & SIMPLE OPERATION]?Input/Output Voltage: DC3-30V, Current Range: 0-5.1A. This portable USB tester is easy to carry and enables you to put it in your bag or your pocket whenever you go, along with the symmetrical and reversible connector for your simply operation. - [PACKAGE]: 1X Multimeter USB Tester. 100% SATISFACTION WARRANTY: We stand behind all of our products 100%.Every item includes one year hassle-free guarantee with considerate customer service. YOMOSI always bear in mind that your satisfaction is our priority. For any reason you are unsatisfied with our product at any time, just feel free contact support for exchange or refund. Our customer service team are here and ready to assist you with any questions. - β€ΊSee more product details ## Images ![YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black - Image 1](https://images-na.ssl-images-amazon.com/images/I/61XMKbKrF-L.jpg) ![YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black - Image 2](https://images-na.ssl-images-amazon.com/images/I/51eJmcEip8L.jpg) ![YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black - Image 3](https://images-na.ssl-images-amazon.com/images/I/61wYYqdECiL.jpg) ![YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black - Image 4](https://images-na.ssl-images-amazon.com/images/I/71OLLz0cFyL.jpg) ![YOMOSI USB Digital Power Meter Tester Multimeter Current and Voltage Monitor, DC 5.1A 30V Amp Voltage Power Meter, Test Speed of Chargers, Cables, Capacity of Power Banks-Black - Image 5](https://images-na.ssl-images-amazon.com/images/I/61hYLQmkcQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great little gadget *by D***H on Reviewed in the United States on October 4, 2017* This is a great little gadget. I have several 5 volt USB charge points in my RV and it was easy to check them all. Plus it lets you see how much current the device you are using is drawing from the USB port ### ⭐⭐⭐⭐ I like very much *by C***R on Reviewed in the United States on February 19, 2018* excellent device...very handy to confirm charging voltage and progress among a few other things ### ⭐⭐⭐⭐⭐ Love to have this for testing my power banks comes ... *by I***1 on Reviewed in the United States on March 2, 2018* Love to have this for testing my power banks comes in extremely handy for the price --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/47139894-yomosi-usb-digital-power-meter-tester-multimeter-current-and-voltage](https://www.desertcart.tn/products/47139894-yomosi-usb-digital-power-meter-tester-multimeter-current-and-voltage) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-04-22*