YOJOCK USB C Tester USB Power Meter 2 in 1 Digital Multimeter 3.6-32V 0-8.0A Voltage and Current Tester Meter, Type C USB 3.0 Voltmeter Battery Capacity Volt Ammeter Power Bank Charger Detector

I did pay for this myself and it isn’t part of the Amazon Vine Program.I do have one of these under another brand but needed a 2nd one and this looked the best value at the time. These do seem to be generic, with some having a brand name on them and others don’t.As I test a lot of charger and cables, these are really great for seeing what is happening vs. the spec. Where this differs from similar products is that you can go from USB-A to USB-C and visa versa. I have another design that, if you plug one end into a USB-A port, then the other end must also be plugged into a USB-A port as well. Personally, I find that too restricting.You can change the display arrangements but some are tricky to read due to the amount of info it’s displaying, that is unless you’re up close. I tend to focus predominantly on a setting which shows me Volts, Amps and Watts at that time and ongoing.It is easy to use and the display is clear, if a bit small sometimes. You even get a Micro-USB adapter included and a simple plastic storage case. Pricing on this specific design does tend to fluctuate quite a lot depending on the brand, I paid £16.74 for this one, but have seen these (not this specific one) for £25 upwards. For the price, I thinks it is decent value and highly portable.I did run a comparison test compared to the other one I had, they are exactly the same device, and the readings were the same on both.I hope you found this review & photos interesting, informative, and useful. Thanks for reading.

Just plug this guy either between your power supply and the cable to the device, or between the cable to the device and the device itself, and it tells your the V, A, and resulting wattage.I don’t own like, a commercial grade power meter to verify the accuracy, and since this is just a little, cheap device not by a major company it’s not reviewed by sites that would do that kind of testing.Since it was pretty cheap though — and well rated on here — I figured I may as well give it a go after investing in a high wattage wall adapter and cables. I definitely noticed my devices charging considerably faster and so was quite sure fast charging was happening. This guys readouts aligned perfectly with the results I was getting and so I feel this device is pretty accurate and worked perfectly for what I’m using it for.

Proving to be really useful at identifying which chargers and leads are capable of delivering a reasonable output charge to our devices.

Good multifunction screen but text can get small to fit in all the info. Very pleased so far.

This thing's stunning. I love it. It's a useful, super-cool little gadjet.

Works nicely

I've had a basic USB power meter for a while, but this one with the addition of USB-C makes it so much more useful with newer devices. The display has many functions and shows a lot of information relating to power consumption. Very handy for testing the charge & discharge capacity of things like mobile phones and power banks

Bought it to help with multiple mini projects around the home involving diy power packs, cheap solar panels, and metering various other usb devices. Works well. Seems reasonably accurate. Knocked off 1 star because I have some difficulty metering my laptop power (perhaps the USB-C PD on it too powerful for the unit it doesnt recognise it) and I had to buy some USB adaptors separately to make it easier to use (female to female etc are useful). Those may or may not be a concern for you. But good product otherwise.