Product Specifications:   Type: Mortise Lock Fingerprint: Up to 100 Card: Up to 50 Mechanical Key: 2 Pin Code: 4 - 10 Digits System Function: APP Management / Record Query Color: Black Thickness: 25-120mm, Aluminium Door Backset: 28/35/40/45/50/60mm Front Body Dimension: 40(w) x 360(h) x 45(d) mm Back Body Dimension: 40(w) x 360(h) x 45(d) mm Battery Life: Approximately 6 Months Battery: Alkaline (AA Size x4) Bluetooth Distance: Bluetooth within 5 meters Compatible (optional): Wi-Fi read more