Specification: Certification: CE Origin: Mainland China Smart home platform: Tuya Handle Direction: Direction Reversible Ways To Unlock: Bluetooth-Compatible,FINGERPRINT,Mechanical Keys Connectivity: Bluetooth-Compatible Doorknob Funcition: Biometric Finish Type: Polished Suitable for Mortise: 6085 Protection Level: IP66 Power Supply: Built-in Rechargeable Battery Color: electroplated black, stainless steel (optional) Main material: front ball aluminum alloy + remaining surface parts stainless steel Unlocking method: key, Tuya Bluetooth-CompatibleAPP, fingerprint Fingerprint specifications: semiconductor fingerprint + LED breathing light Fingerprints: 20 Fingerprint pixels: 40*96 Fingerprint resolution: 508dpi Universal lock body: American standard single tongue lock (60-70 adjustable) Motor: M10 motor Lock core: marble lock core Low battery alarm function: 3.3 0.2V (low voltage alarm) Standby power consumption: Standby quiescent current: ≤90uA Working current: Average working current: ≤350mA Power supply method: 400mAh rechargeable lithium battery 3.7V power supply, Type-C temporary power supply interface 5V 2A Life test: 100,000 times Prompt sound: Buzzer prompts navigation Function configuration: channel mode (normally open) + private mode (anti-lock) + door mode Applicable door thickness: 35-55mm Applicable door categories: wooden doors/steel doors/copper doors/composite doors Product size: diameter 75mm *73mm/2.95x2.87inch Single unit weight: 0.68 (Kg)