Polarity: Operator-Selectable (plus or minus).
Operating Modes: Single-shot and repetitive.
Repetition Rates: One shot per approximately 1, 3 or 10 seconds.
Program Voltage Adjust: Multi-turn, long-life potentiometer, mounted in thumb-accessible position on ESD gun handle.
Discharge Ground Strap: Inductance equivalent to that of IEC-specified return, but with insulation adequate for 25kV. Length ~ 2000mm, or 6.5ft.