Technical parameters: Instrument size: (W) 166mmx (L) 96mmx 30mm (H), Left shoe value: 750k Ω - 100M Ω, Step size: (W) 300mmx (L) 400mmx 20mm (H), The right shoes value: 750k Ω - 100M Ω, Activities support: Adjusting range: > 150mm, Wrist value: 750k Ω - 10M Ω, The total weight: 6.5 kg, Testing precision: ± 10-20%, (the parameters for the gb) conducting shoes for Ω 100k Ω 35M - according to user's use conditional statements. Operation: use. 1, before using the battery, if buy switch ON display abnormal or keep buzzer, machine, please insert the battery owe electric power adapter can use directly and charging machine. Static dc current for 12V / 60mA. 2, ESD test, just your feet on the relative metal respectively, wear well step with carrying or inserted into the wrist, wrist wiring in metal press gently fingers test button clearly know whether the equipment ESD. Note: do not wear gloves or by using nails in metal test button. Stents lock knob and.