Opening the 30-year-old unit, he probed a row of screw terminals and identified a 13V supply, ground, and the connection to the buildings’ door lock. He connected the lock terminals to a relay ...

Deadbolts significantly improve security over key-in-knob locks alone. Electronic locks let you lock and unlock your door without a key. Cons: They lack the convenience and extra features of smart ...

The DS-K4H250S Single-door magnetic lock is designed for wooden door, glass door, and stee... Hikvision DS-K4T108-U1 Value Series Bolt Electric Lock Bracket U-bracket of Electric Bolt, for Using with ...

CyberLock CLT-T7H vending, front install door lock with spring latch CyberLock CLT-T7H vending, front install electronic door lock with spring latch. Cybe... CyberLock CL-M4 mortise 1.25 inch lock ...

As digital technology advances and homeowners ... note that all keyless door locks have smart features. To distinguish, ...

It does lack some of the higher tech features of other picks, like a fingerprint reader or door status sensor, but it’s an extra-tough commercial-grade lock with a built-in alarm and dead simple ...

while the inside unit has a four-inch screen to show you who is at the door — like a digital peephole. The lock uses a rechargeable 10,000mAh battery that promises up to eight months of battery ...