The Programmable Timer Module with LED Indicator is a hardwired relay device for timed security and access control operations. The timer can be set from 1 second up to 60 minutes. It is ideal for unlocking doors to allow entry or even to activate a siren or bell timer. Automatic-sensing can be triggered by a positive voltage (+DC), closure of dry contact, or opening of dry contact. The relay can be programmed to activate at the start or at the end of the timing cycle, set to activate for one second at the end of the timing cycle, or programmed for pulse (flash) activation. An LED offers visual indication when the relay is energized. There is a built-in reset function to manually reset timing cycle Simple screw terminal allow for quick connections and adjustable DIP switches make programming easy. What's Included # Programmable Timer Module with LED Indicator # Owner's manual