Ezviz DL03 Pro Smart Rim Lock, Connects to 2.4 GHz Wi-Fi, No Connectivity Hub Needed, Fingerprint Unlocking, Remote EZVIZ App Unlocking & Controls, Real-Time Lock Status Check & Alerts, Multiple Unlock Methods, Smart Integration with EZVIZ Cameras, Sturdy Lock Body, Anti-Tamper Alarm, Supports Emergency Power Supply, Product material: Aluminium + Plastic, 4 AA Alkaline Batteries, Support Automatic locking, Door-left-open alert, Temporary passcode, Real-time notification, Password unlock, Proximity card unlocking, Electric doorbell, Anti-tamper alert, Anti-test alert, -25C~55C.