Equipped with screw holes making it easy to install on a wall or cabinet. 24/7 security monitoring. Remote open from anywhere. Real-time reminders. Wi-Fi connectivity. Loud, audible and visual alerts from device. Back up key access. Sealed compartment to control moisture. Exterior dimensions: 6" x 12.8" x 3.4". Interior dimensions: 5.6" x 8.4" x 2.5". Weight with batteries installed: 4.15 lbs. Smart phone app available for IOS and Android systems. Requires (4) AA batteries (not included). Boxed.