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 ...
Model 2100 is a high-precision, 6½-digit DMM with 10-Vdc accuracy of 38 ppm at a measurement rate of 50 readings/sec at full resolution, and over 2,000 readings/sec at 4½-digit resolution. Aug. 9, ...
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