... alarm for ON/OFF control 2011--HHE series Digital Timer Counter,Timer Relay(Latest)HH4 series, 48*48*80mm,dual line ... lock function.4) NPN PNP (Rst \ start \ pause)control function, Auto cycle timing and delay output.5) one alarm output relay ... , Sensor Meter, inductor, Power Meter, Coulometer, Voltage Meter, Ampere Meter, Counter, Tacho Meter, Frequency Meter, flowmeter,Timer,Timer Relay, Solid State ...