Features : - By adjusting the potentiometer can set the length of time - MicroUSB 5.0V power supply with an input port, easy to use - 5-30V wide supply voltage - External signal trigger and key trigger in two ways - With a relay indicator - Anti-interference ability, the relay at various interference will not misoperation, suitable for industrial control
Package : - 1x 5V-30V Micro USB Power Adjustable Delay Relay Timer Module Trigger Delay Switch