USB C Power Meter USB C Tester, USB Multimeter 4.5-50V 0-12A Two-Way Measurement Voltage Current Capacity Amp Volt Voltmeter Ammeter Detector Color Display Digital Tester for Chargers Power Bank Cable

When I have a tool or instrument I like when it’s easy to use without a lot of complicated screens and pressing buttons, and all kinds of multifunction type of things. But this meter you simply just plug it in and that’s it. There are 2 buttons, however, I find that the instructions aren’t quite clear and as always, you need to do your own poking around to find out in your mind how these things work. But most of all it gives you the basic data voltage amperage, wattage, and watts hours. It will show you the accumulative watt hours. The screen auto rotates or what you call gravity screen. Is small and compact and completely enclosed, not like the other ones that look like they have two circuitboard screwed together like a sandwich. It seems to do PD charging. I am learning more about this in their protocols. also with the other USB meters there’s an adapter that you have to plug in for the C type protocol. And it seems like they won’t read anything other than PD‘s type C.It’s looks like they’re not quite made for the other types of USB other than type A. They also have a Data out for Jack. This one does not. For this particular meter it’s visual information that you can see real time. If you look closely at the very tiny bottom banner, it shows how much time it took for the particular charging event as well as peak, wattage and voltage. A very interesting little meter. I recommend this USB meter.

Excellent device with useful information, clear graphics, and a reasonable price I’ve used it to learn a lot about charging my devices, and which power supplies are best for specific situations. I also used it to measure power consumption of devices to help me estimate runtime and battery capacity needs. It seems durable so far, and it’s incredibly small and unobtrusive.

Works as expected and comes with case to store it easily

Works good so far! Will provide updates IF it stops working and/or malfunctions in any way.

This has worked great for my needs. Pros: Easy to read LCD Simple interface Screen rotates 90, 180, 270, 360 degrees LCD has a good refresh rate Value Voltage Amperage and Wattage all seem reasonably accurate. Cons: I am not sure the Watt Hour (Wh) measurement is very accurate. I used a 5Ah M18 battery with a PD100 watt adapter to charge my laptop and when the battery was depleted to where it shut off it was reading 122Wh from a 90Wh battery. This was not just one battery I had 4 M18 batteries, so either they are all under rated or this meter does not have enough resolution to accurately measure Watt Hour.

Good product

So glad I bought this. It's easy to read, the display can be easily flipped to whatever side I'm on, and it's plug and play simple. I can set it and come back later to see not only the current energy in use, but also the max during the session (it resets when you unplug it). This has helped me determine the charging capabilities of various power banks, AC chargers, and USB-C cables. For cables that have their own meters, this device has confirmed that those meters are functioning properly.

Very accurate. Tested on an original iPhone 15 Pro 20w wall charger using 100w cable from a different company. Found a different charger for my iPhone 16 Pro that was charging at lower voltage. Replaced charger.