Specifications: Model: B-P-01-A Material: ABS Color: Black Unlock mode: Fingerprint Battery: 201mAh Fingerprint capacity: 20 Fingerprint read: Semiconductor Sensor Color: Black Read time: ≤0.3S Working Power: Built-in Lithium Battery Working Temperature: -20 65°C Application Cabinet, Drawer Package Size: 9 * 3.6 * 3.6cm / 3.54 * 1.42 * 1.42in Package Weight: 39.2g / 1.38oz Manual Instruction: 1.The default is any fingerprint can unlock the door. 2.Input fingerprint Press the fingerprint sensor until blue LED flash , then take off your fingerprint, the blue LED will on.Then input your fingerprint for 5 times. Each time the blue LED will be flash one time if input successfully. After 5 times, the green LED will on for one seconds, that mean input fingerprint successfully. The first 3 pieces fingerprint is administrator. 3.Input more fingerprint Input administrator to verify first, then you can add users fingerprint. 4.Delete fingerprint Press the fingerprint sensor until red LED flash , then take off your fingerprint. Verify administrator fingerprint, if successfully, the green LED will on for one seconds, then all fingerprint had been deleted. Package List: 1 * Fingerprint Lock (Left Side) 1 * Bag of Installation Kit