Description:

The EMPI Select is a pocket-size, clinician-programmable TENS device designed for chronic, arthritic and post-surgical pain relief. Two completely independent output channels deliver a balanced asymmetrical biphasic waveform; the positive phase is constant-voltage while the negative phase is constant-current, ensuring a consistent stimulus across tissue impedances. Users choose one of five Quick-Select body programs or four fully adjustable modes, setting intensity, pulse width and rate from the front membrane keys; an intensity-lockout protects against accidental over-stimulation during daily activities. Therapy parameters—plus compliance data such as total treatment minutes—are stored in non-volatile memory for later review. The back-lit LCD shows channel intensities, timer countdown and battery status, and a belt clip secures the 5-oz unit under clothing. Power comes from four standard AA cells (alkaline or the supplied rechargeables), giving several days of typical use between charges and eliminating proprietary battery costs. Because the device meets IEC 60601 Type-BF safety and passes EMC testing, it can be used in home, clinic or EMS environments without special shielding.

Economic Advantage:

Clinics that supply disposable rental stimulators replace them every few months; the Select carries a lifetime warranty and its lead wires, electrodes and AA batteries are the only consumables. By bundling five evidence-based presets, practitioners spend less chair time programming units, and the lockout feature reduces phone calls about mistaken settings. The built-in treatment log supports reimbursement audits, eliminating separate compliance meters that can cost $60 per patient episode. Over a 12-month rotation of 50 units, total consumable and service savings typically exceed $4 000 compared with single-preset, non-logging TENS boxes.