631 STANDARD VERSION (25 MM) Designed enclosure for wallmounting with label recess. Closed version. Suitable for alarms etc. Possiblity for 2 PCB´s. PCB and packing are available. Standrad colour is white/black but other colours can be supplied on request. Label in polycarbonate available in customer specified colours. Base part available with cold press fixed taps or four self tapping screws to fix PCB.