... series Proximity Sensor(Inductance & capactitive) Features:1, High frequency response, long service life(more than 50 million), reliable action, ... Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity ... computer integrated control system etc. They are widely used in industrial control and measurement field, such as ...