NEW NightWatch™ EXTRA NIGHTTIME SECURITY
The Master Lock NightWatch™ deadbolt is the ONLY deadbolt that prevents an intruder from entering your home… even if they have your key.
- When the NightWatch™ feature is engaged, the lock cannot be opened from the outside. Even with a duplicate key.
- Can only be engaged or disengaged from inside the home.
- Fits all doors — replaces all brands.
- All NightWatch™ deadbolts feature the exclusive Master Lock BumpStop™ Advanced Cylinder Technology to resist bump attacks.
Watch video for more information and demonstration.