Polystyrene or ABS material casings available in RAL 9004 or RAL 7035 colours. The basis of the casing has integral fastening pins for the PCB. The covers of Z-79 and Z-80 casings have an opening suitable for a membrane keypad or displays. It has a matte surface finishing. The front is mounted with four screws. KM-40 is available with a screw to mount a cover.

Optionally available screw covers FI-114.