BioMedical Life Systems BioStim Digital TENS Unit has Seven Programmable Functions;

• Continuous, Width Modulation, Rate Modulation, Rate and Width Modulation, SD1, SD2 and Cycled Burst.
• Patient Lock System that, when activated prevents the patient from changing any of the set parameters.
• When the Patient Lock Systems is turned off, a Patient Compliance Meter is displayed showing how long the device was used.
• A timer allows the patient to use the device for a specified period of time.
• The two-channel device incorporates touch proof design and is run by two AA Batteries.