... max 100KHz), accuracy: 0.01Hz. Applicable to equipment for control of frequency, tacho, line-speed, level, etc; The instrument ... has several parameters setting function, easy to operate.2, For other specialize teser for ... , Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, ...