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