1pcs Delay Relay Module Delay Timer Control Switch Board For Access Control
$ 22.81
1When power on or external press the trigger, the relay delay is adjustable from 1 second to 3 minutes, and the relay contacts are switched on or off. 2With Indicator light of relay on and off. 3When the time action is less than 0.5 seconds, stop the relay and protect the delay drive IC. 4It can be used to control the delay switching on power supply of the high voltage panel of the valve power amplifier. 5Single steady state working mode can be achieved by external Normally open button
