1,Key pad password, within 8 numbers, 2,Sound and light indication when it works... 3,password,single card to open both or co Applications: widely applicable to the swimming baths, sauna field, golf courses, the more gym Wardrobe, institutions, Gym ,enterprises, schools, hotels, supermarkets, such as filing cabinets or lockers. Dimension out: 100x50x20mm (LxWxH) inside: 134x67x21mm (LxWxH) Power ...