Specifications: Features: 1) Various open methods, including fingerprint, code, ID add fingerprint and code add fingerprint 2) Available person's number can be up to 101 people 3) Size: a) Front body (D x W x H): 73 x 80 x 214mm b) Main body (D x W x H): 78 x 80 x 214mm 4) Pass word: 4 - 12 5) Power: DC6V (1.5V AA alkaline) Packing: Carton