With the StarTech.com USB-C Power Tester, you can easily look for charging problems in your setup. It’s a quick and easy way to ensure your devices are getting all the power they’re supposed to. I ...

So a few months ago, I stumbled upon a thing at Adafruit.com called a "Charger Doctor" which was really just a Multimeter designed to slip inline with your USB cable. It was $7.50 and I liked it.

Austin, Tex. — National Instruments (NI) has released the NI USB-5132/5133 digitizers and the NI USB-4065 6½-digit digital multimeter (DMM). These small, lightweight instruments feature bus-powered ...

Seattle, Wash. — Signametrics Corp. has introduced the SMU2055 6-1/2 digit USB digital multimeter (DMM). The SMU2055 is powered directly from the USB connection, and consumes only 1-1/2 watts.