... pressure,Loadcell,switch,etc. DS3A series 4 Digits display Sensor Meter1) Signal input: regular:4-20mA/0-75mV/0-10V others: ... range settable:up to 2 alarm output4) big inch LED 4 digit display,range:-1999~9999 floating point; 5) Communication:RS232 ... Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State ...