Manufacturer's Description: True Interferential Therapy The Z-Stim IF150 is a TRUE Interferential Stimulator with two channel, four pad output. Each channel generates separate frequencies which interact at the treatment site producing TRUE interfe ...

Manufacturer's Description:   Carrier Frequency: 4000Hz., fixed  Interference Frequency: 4001-4150 Hz  Difference Frequency: 1-150 Hz., adjustable  Output Voltage: 0-16 volts (through 500 ohms)  Waveform: Symmetric biphasic square Pulse W ...

Manufacturer's Description: The Sys*Stim 216 is a portable, battery-operated interferential stimulator. It has three preset frequency sweeps plus a programmable single frequency selector as well as an automatic vector function. In additio ...