Schlage Encode WiFi Enabled Electronic Keypad Deadbolt with Camelot Trim Finish:Matte Black It can be either battery

It can be either battery operated or plugged into the UL listed electrical outlet that includes multiple outlets and two USB ports

1/2" Solid Steel Door

Interior Dimensions: 19 h x 13

and a grooved door seal

Schlage Encode WiFi Enabled Electronic Keypad Deadbolt with Camelot Trim Finish:Matte Black It can be either batteryModel : BE489WBCAM Product Features: Exceeds criteria for ANSI BHMA Grade 1 certification Low battery indicator offers weeks of advanced warning for battery replacement Requires 4 AA batteries (included) Compatible with Amazon Alexa for voice activation Convenience of keyless access and WiFi lets you lock unlock your door from anywhere Buttons Illuminate when you press any button from the exterior Installs with a screwdriver into standard door prep in