"These little dongles measure voltage, current, power capacity, and other metrics. I use them for all kinds of tasks, from checking if a USB port is working to testing the power capacity of devices like power banks and smartphones. They're one of those tools I rely on to get my work done, and I've probably collected close to two dozen of them over the years."
"The power meter supports voltages between 3 and 30 volts, currents between 0 and 12 amps, and power up to 360 watts. It even includes a logging and graphing feature and can test just about every fast-charging protocol. The meter is housed in an aluminum case and is dust -- and drop-proof. It also comes with a little silicone cover for the connector, but I typically don't bother using it."
A $12 USB-C power meter provides accurate voltage, current, and power measurements for testing USB ports, power banks, and smartphones. The meter measures 3–30 volts, 0–12 amps, and up to 360 watts, and supports logging, graphing, and most fast-charging protocols. The device uses a 1.06-inch color OLED that displays detailed information clearly. The enclosure is aluminum and offers dust- and drop-resistant protection, and the unit includes a silicone connector cover. Accuracy and performance compare favorably with much more expensive meters, making the device a cost-effective tool for enthusiasts and technicians.
Read at ZDNET
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