The DSO's also have a zoom function for expanding a segment of waveforms of interest, 20 automatic waveform measurements, and USB interface for high-speed communication with a PC. They can serve as auto-ranging, 6,000-count true-RMS DMM's with 600-V category III ratings and 600-A current.

Protek Test and Measurement, 45 Smith St., Englewood, NJ 07631, (201) 227-1161, protektest.com