Dantech 12VDC Two Door Normally Closed Interlock Module with Delay Timer

DA550T: Timed two door normally closed interlock module This is a 12VDC two door interlock system with an integrated delay timer that monitors the states of both doors. Upon request, the unit will release a door while the request exists, and only if the other door is secure (i.e. door not released and door contacts closed). - Allows only one of two doors to be unlocked at a time - Timer delayed operation - Power with 12VDC - Mild steel enclosure with tamper switch