Fingerprint SettingSmart fingerprint lock stores 30 fingerprints. To register, press reset hole with pin, place finger in window within 3 sec, the blue light flashes to indicate successful recognitionand, repeat 5 times. Green light = success, red = fail. To clear prints, hold pin in reset hole for 5+ sec.
Power Efficient & Emergency Backup PowerThis under table drawer runs on 4 AAA batteries (not included) and can last up to 1 year. It also has an emergency USB port on the keypad for backup power.