Fingerprint Lock 3 Lever Electronic Intelligent Keyless Entry for Office Study Room Item Type: Fingerprint LockMaterial: Aluminum alloy and flame retardant ABSSize: Approx. 168 x 77 x 70mm/6.6 x 3.0 x 2.8inRead Time: <1s Unlocking Method: Fingerprint and Key Operating Temperature: -25℃ - 65℃ Power Supply: 2000mAh 18650 lithium battery (rechargeable) (shipped with built-in battery) Service Life: 100000 timesFingerprint Capacity: 40 PCSApplicable Door Thickness: Approx. 25 - 65mm/1.0 - 2.6in Lock Body Size: Approx. 60mm(2.4in)/70mm(2.8in)(adjustable center distance) Error Rate: ≤0.1% Application: Indoor door, rental house, office, study, guest room How e:  1. Pull up the front cover and rotate it 90° counterclockwise 2. Insert the key, turn the key 90° counterclockwise and turn the door handle 3. Turn the key 25° clockwise twice to enter the fingerprint entry4. Fingerprint input for 5 times in a row can be successfully recorded 5. Turn the key 25° clockwise and hold it for 5 seconds to restore the factory mode