The padlock has a backup code entered using the directional buttons ... bottom of the padlock can be used to “jump-start” the padlock’s biometric sensor with a 9V battery. The Master Lock ...

Master Lock's 4400D Indoor Bluetooth Padlock lets you pop it open ... and a silver Master logo near the bottom. The button can be pressed to manually open the lock using a Konami code-like ...

If the battery in the padlock dies while it's closed, you can jump-start it to open it and replace the battery by pressing a 9-volt battery to the contact points on the bottom. Master Lock says ...

Master Lock has also devised a groove system on the bottom of the padlock that acts as a key guide, aiding users with sight challenges to easily insert the key. Master Lock’s innovative portable lock ...

The all-weather Master Lock 4401DLH padlock can be controlled by your smartphone, and lets you grant guest access, but it'll cost you a pretty penny. ... Bottom Line. All in all, ...

Bottom Line Master Lock's 4400D Indoor Bluetooth Padlock lets you pop it open with the touch of a button and provide guest access to anyone you want. Best Deal £248.02 ...

Master Lock's 4400D Indoor Bluetooth Padlock lets you pop it open with the touch of a button and provide guest access to anyone you want. Smart locks aren't new, but they generally come in the ...