Product Name C91 smart lock Unlock type APP/ fingerprint/ password/IC card/key/Bluetooth Material Aluminum Alloy Mortise Single Latch3585/4585/5050/5072/5572 Fingerprint Type FPC 160X160 Power Supply 4.5~6.5v (4AAA batteries) Fingerprint capacity ≤300pcs (include Password/Fingerprint/cards) Working Temperature -20°C~70°C Working Humidity 10%~95% Size 277*65*22.5mm Door Thickness 38mm~55mm Technical parameter [Keyless Smart Locks]-5 unlocking ways: TTLock app+keyboard+fingerprint + smart card+Physical key [Security and Convinient]-Anytime, Anywhere Security and Control With WiFi Gateway (optional add-on, sold separately,remotely lock and unlock your door, set up code or simply check status from anywhere, via mobile app. [3D ngerprint sensor] Hold the handle and press the ngerprint to unlock it. 100 fingerprints can identify you in less than 1 to 1.5 seconds, and is ideal for children and the elderly. [Battery-powered, external power supply and spare key] Smart key lock (not included) powered by 4 AA batteries.