--- product_id: 49445621 title: "HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets" brand: "homern" price: "$32.72" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/49445621-homern-usb-tester-charger-doctor-digital-multimeter-current-voltage-detector store_origin: US region: United States of America --- # HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets **Brand:** homern **Price:** $32.72 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets by homern - **How much does it cost?** $32.72 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/49445621-homern-usb-tester-charger-doctor-digital-multimeter-current-voltage-detector) ## Best For - homern enthusiasts ## Why This Product - Trusted homern brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Have you ever meet the problem of suboptimal voltage in cheap power adapters? Or when USB devices don't work, they can be hard to troubleshoot. Here you go to the right place. Our USB load tester can be used to check whether a USB power supply (charger) or battery bank is actually providing the rated output or not.(A lot of cheap chargers will say things like 5V/2A but actually deliver 1A or even just 500mA before the voltage starts dropping, slowing your charge speed.) Charger Doctor models that cycle between volts and amps. This USB connector shows the volts and amps at the same time, and in a different color.It also has two outputs for both Power and Data Usable in most circumstances: USB devices like smartphones, tablets and cellphone, USB batteries, chargers, cables ,Raspberry Pi,etc, suitable for factories, trade shows, laboratory [Bottom Line] The Homern USB meter is closely to those produced by a good multimeter.For most applications, all you need to know is whether your USB port is charging at slow (0.5A), fast (over 1A), or not at all. A precise reading is not really necessary in this case. Therefore we consider this product a good value for your need. Features: - The two USB ports can be used for both Power and Data - Large LED displays shows voltage and current in real time (simultaneously).Numbers are easy to read - Bright blue and red LED display shows you voltage and amperage in cycle - Handy device for monitoring the flow of power to an equipment being charged.You can see the amperage drop as the unit being charged fills up Dimension: Voltage: DC 3-9V (error +/- 1%) Current: 0-3A (error: +/- 2%) Maximum support: 5A 5A current (beyond 3A error will be larger in 3%) Resolution : Voltage 10mV current 1mA Full scale drop : ( When measuring current ) 200mV Package Included: 1 X USB tester ## Features - A simple little diagnostic tool.Functions well to monitor battery charging status. Shows volts supplied and amps drawn. Answered a few questions of your own as to why some devices charged better than others - Great little digital multimeter for testing voltage/amps output and power draw for usb-driven devices. Easy to read, helps identify which chargers put out the most charging current.This does do the trick for trouble shooting - This foolproof usb meter has been a real benefit in sorting phones, cables and wall warts adapters into how well they are working for each of these apple devices.Are they capable of supplying adequate power - A very handy USB power monitor to have around for checking both Vdc and the current a USB device would draw with re-charging and go to zero when fully charged - Unlike other USB multimeter, which displays voltage and current in alternate mode and you have to wait for the other mode. This device displays both voltage and current simultaneously! ## Images ![HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets - Image 1](https://m.media-amazon.com/images/I/71zpz1-9jpL.jpg) ![HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets - Image 2](https://m.media-amazon.com/images/I/61baYqKJywL.jpg) ![HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets - Image 3](https://m.media-amazon.com/images/I/61sqaYdtJdL.jpg) ![HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets - Image 4](https://m.media-amazon.com/images/I/71A0LN2jgmL.jpg) ![HOMERN USB Tester,Charger Doctor Digital Multimeter Current Voltage Detector,Battery Monitor with Dual Outputs for Solar Panel Chargers Cables &Other USB Devices Troubleshooting Tools and Gadgets - Image 5](https://m.media-amazon.com/images/I/517KBtdMKiL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Ery easy and warranty will accept the results *by M***N on Reviewed in the United States 🇺🇸 on November 19, 2022* ### ⭐⭐⭐⭐⭐ Easy to use *by D***. on Reviewed in the United States 🇺🇸 on September 11, 2022* Just plug it in and read the display. ### ⭐⭐⭐⭐⭐ Buena 👍 *by J***A on Reviewed in the United States 🇺🇸 on September 3, 2022* Trabajo --- ## 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.us/products/49445621-homern-usb-tester-charger-doctor-digital-multimeter-current-voltage-detector](https://www.desertcart.us/products/49445621-homern-usb-tester-charger-doctor-digital-multimeter-current-voltage-detector) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*