FEATURED AD
Black Box install the highest grade of professional fire monitoring with connections into an ARC. As part of this, they are installing GradeShift Pro Fire as standard for all new and existing customers. GradeShift Pro Fire is a DP2 graded, radio/radio dual-path signalling solution. It uses two active 4G WorldSIMs, each with their own radio module, one as the primary and one as the secondary path. |