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Mechanical keyless door lock

by Satish

Mechanical Keyless Door Locks

They are with round knob which you can rotate. Numbers are written on circumference. By rotating clockwise & anticlockwise you set the particular number.

They are Simple and reliable. You don't require batteries.

Mechanical locks are with limited password length, usually 4 or 6 digits maximum. User can go on trying. There is no wrong password lockout.

You can use it inside the house where you require frequent opening / closing.

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