... ,Loadcell,switch,etc. DS3A series 4 Digits display Sensor Meter1) Signal input: regular:4-20mA/0-75mV/0-10V others: ... Isolated 4-20mA analog output; measure range settable:up to 2 alarm output4) big inch LED 4 digit display,range:- ... TC and RTD), Panel Meter, Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay ...