Key and electronic keypad operation. Manual override. 1 shelf. Unique Yale design, with laser-cut, spring-loaded door, improved user interface and reinforced hinges for added security. Specifications: External W x D x H: 350 x 320 x 250mm. Internal W x D x H: 345 x 245 x 242mm. Batteries included. Weight 13.2kg. 20.5 Ltr.