... 100KHz(max 100KHz) Accuracy:0.01Hz. Digital 4/5/6 LED Frequency Meter (FA) Features:1, Input: various wave form ... :0.01Hz,Applicable to equipment for control of frequency,tacho,line-speed,level,etc;The instrument has ... (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, ...