Product information: Specifications: T8 Black, T8 gun color, T8 silver, T8 gold Recognition speed: 5s Unlocking Method: fingerprint, password, app, key Operating temperature:-20°C to 60°C Applicable door thickness: 30 ~ 55MM (if it exceeds the requirements) Applicable door type: wooden door, blister door, etc. Fingerprint type: Semiconductor Fingerprint capacity: 50 Main material: zinc alloy Lock cylinder level: C- level lock cylinder Power supply: 4 1.5 V7 batteries