12V Relay Module External Trigger Delay Switch Time Adjustable

Working mode: Turn on the power, LED lit, but the relay does not work, trigger the termination button or PNP sensor trigger, when there is a high level trigger (or the button is instantaneously connected to the positive power supply), the relay starts to work, the countdown delay, when the delay time arrives, the relay disconnects.Feature:Voltage: 12VSize: 63.6mm33.1mmCurrent: standby about 12ma, working about 50maLoad: Below 250V 5A AC or below 30V 5A DCWith power-down memory functionError: 0.01% /secondDelay: 0-999 secondsHigh-level trigger, counting time is 0-999 secondsProduct comes with input and output with optocoupler isolationPackage includes:1 x External Trigger Delay Switch Module