Base, terminal compartment cover with EPDM gasket and screws for mounting plate/DIN-rail. -3 and -L3 versions: Transparent cover with PUR gasket, hinges, locking devices, FC version: Closed PC frame front plate with PUR gasket and cover screws. CARDMASTER range is ideal for packaging instrumentation, measurement, monitoring and process control equipment. It provides two compartments - one for circuit boards and sensors with slots for printed circuit board insertion, and another one for terminal and wiring. All sizes are available in both polycarbonate and ABS.