Main Features of Digital Tens Unit Machine EV 803 : Cannel: Dual, isolated between channels Pulse Amplitude: 0-80mA peak to peak into 500-ohm load. Pulse Rate: Adjustable, from 1Hz ~ 150 Hz, 1 Hz/step Pulse Width: Adjustable, from 30 µs ~ 260 µs, 10 µs/step Mode: B, N, M, S1, S2 Wave Form: Asymmetrical Bi-Phasic Square Pulse Voltage: 0-40 V peak into 500-ohm load Size: 100(H)X 60(W) X 21(T) mm A timer of 15, 30, 60 minutes is available by order.
