All SALTO XS4 hardware comes factory defaulted to the SALTO construction card - PCM01KC. The SALTO PCM01KC Mifare 1k Proximity Construction Key Card can operate all SALTO equipment straight out of the box - no programming required. This allows for the fitting and testing of Salto XS4 hardware, minus the need for initialisation and programming, prior to the installation of the hardware. Please note, once the system has been programmed, this card will no longer operate.