Apex Analog Interferential- IF Unit

Apex Analog Interferential Unit (IF Unit)

IF-4000 INTERFERENTIAL STIMULATOR W/AC ADAPTOR

Dual-channel interferential unit

4,000 Hz fixed carrier frequency

1 - 150 Hz adjustable difference frequency

Four frequency shifts include continuous, 1/1 abrupt, 8/8 abrupt and 10/10 ramped

Symmetrical, biphasic, square waveform

Powered by DC adapter or 9-volt battery

Includes stimulator; lead wires; one pack (4) electrodes; 9-volt battery; hard-sided, protective, plastic case; and instruction booklet