Powerful simplicity and precision in our newest analog unit, the Precision TENS 3900™. More powerful than the TENS 3000, our Precision TENS 3900™ has a max power output of 90mA and has 4 treatment modes. Microprocessor technology delivers precise settings with an easy to use analog interface.
Max 90mA output
4 treatment modes: Burst (B), Constant (C), Modulation-width (M), Modulation-rate and width (MM)
Timer: 30, 60 minutes, or continuous
Clear view window to view current settings
Amplitude safety cap to protect intensity settings
Complete kit with 4 electrodes, leadwires, 9v battery, instruction manual, carrying case
3 Year Warranty