Passcode door locks, also known as keyless door locks, work by releasing a deadbolt when the correct numeric code is entered, and then automatically relocking after the door closes.
Here's a more detailed breakdown:
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Numeric Keypad: Keypad door locks use a numeric keypad instead of a physical key.
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Code Entry: Users enter a predetermined sequence of numbers (the passcode) into the keypad.
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Deadbolt Release: When the correct code is entered, the lock's internal mechanism activates, releasing the deadbolt. According to reference material, "Pressing the correct sequence of numbers releases a deadbolt, which automatically locks after the door closes."
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Automatic Locking: After the door is closed, the deadbolt automatically re-engages, securing the door.
In summary, passcode door locks use a numeric code to control the locking and unlocking mechanism, providing a keyless entry solution.
