... RPM,HZ,line speed,level 4/5/6 digit display. Digital RPM Tacho meter/ Techometer (FA) ... for option), display modes settable:Frequency, Line-speed, Tacho. Dimensions: 48*96 (48*48, ... Digital Adjustor,thermocouple (TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay ...