... --9999 Auxilliary power: 24V/12V/30mA DA series Process Indicator for voltage & ampere measurementFeatures:1) Input: mA, mV, V, ... Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure ... etc. They are widely used in industrial control and measurement field, such as machinery, electrical cabinet, power sub- ...