YEEUU C1L Smart Waterproof Knob, App-enabled, with Fingerprint, NFC, and Passcode. Cylinder Inside.

High Level Waterproof The lockbox has an IP65 weatherproof rating and can withstand extreme weather, suitable for daily outdoor use. Long Life with Small Batteries Powered by 2*AAA(LR03) batteries. High-energy batteries with lower energy consumption can guarantee routine work for 18 months. Multiple Passcode Modes Temporary Code-Setting start and end time. Recurring Code-Taking effect periodically. Dynamic Code-Changing every 5 minutes. Off-line Code-Manage without relying on the network. Backplate Optional YEEUU smart lock offers more possibilities for installation forms. Hidden High-security Cylinder The highly integrated structure makes the lock safer and more concise.