... proof 3,103 keys,including 12 Function keys and number keypad Key Features: 1) Waterproof industrial keyboard ... with 103 keys,including 12 function keys and number keys2) Panel mount(mounting from behind) to the ... example,factory workstation,oil field,mine,water factory,and self-service kiosks deployed in cinema,theater,shopping ... keyboard with trackball ,Function keys and number keypad