Long Life: The WiFi door lock is powered with 4 AA batteries (not included) that can last up to 6 months. The Smart Life APP will remind you to replace the batteries when they're low alarm, and you can also check the status in the APP at any time. Emergency use of the backup power supply TYPE-C is also possible. Use TYPE-C in emergencies to plug in a backup power supply.
Lock Knob Dimensions: No additional hole drilling is required for the smart locks installation. The door handle also features an adjustable screw hole, allowing for easy adjustment of the previous door handle. the installation process takes just 15 minutes. The stainless steel adjustable latch with a backset measures either 2-3/8" or 2-3/4" (60mm or 70mm), ensuring compatibility with US Standard doors ranging in thickness from 1-3/8" to 1-3/4" (35mm to 45mm).
Lock Knob Dimensions: No additional hole drilling is required for the smart locks installation. The door handle also features an adjustable screw hole, allowing for easy adjustment of the previous door handle. the installation process takes just 15 minutes. The stainless steel adjustable latch with a backset measures either 2-3/8" or 2-3/4" (60mm or 70mm), ensuring compatibility with US Standard doors ranging in thickness from 1-3/8" to 1-3/4" (35mm to 45mm).
