... duty cycle,etc,please indicate when ordering.3, 4/5/6 digit display,with demical point switched automatically;Opical ... isolation for input and output,high anti-interference.4, Output:up to 3 alarm output ... Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State Relay, Proximity Sensor, ,Pressure sensor ,load cell sensor, KNE KSC box, Rotary ...