YEEUU S171 Smart Mortise Lock, App-enabled, with Fingerprint, NFC, and Passcode. Cylinder Inside.

High Level Waterproof The lockbox has a high weatherproof rating and can withstand extreme weather, suitable for daily outdoor use. 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. Long Life with Small Batteries Powered by 3*AAA (LR03)batteries. High-energy batteries with lower energy consumption can guarantee routine work for 18 months. Hidden Keyhole The keyhole is hidden under the plate, which is simpler and safer. Backplate Optional YEEUU smart lock offers more possibilities for installation forms.