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Please forgive my ignorance but I’m retired and truly a complete noob. I’m looking to find and match a battery-operated, 110v/12v  or 12v digital or analog timer with a simple drop bolt lock, like a door bolt, such that a time may be set to send a signal to the drop bolt to open at that time. It may be as simple as a pool timer but again, I‘m a novice in electronics. I was thinking of something like a landscaping transformer but I think that provides a continuous electrical flow to the lock for a specified time and I don’t think that’s what I need. I believe I need a device that sends something like a .5 or 1 second pulse to trigger the bolt to recede or “open” and then return to its original “closed” state.

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