High security 868Mhz 7-channel encrypted communications protocol proven in a large installed base of fire and security systems. Units powered by low cost, readily available 3V lithium batteries. 5 year primary battery life with an additional 2 months from the secondary back up cell. Patented multi-directional antennae virtually eliminates data corruption and signal fade. Designed to meet EN54 part 25 and BS5839. All system elements are very competitively priced. Easy installation and comissioning. Wireless hardware costs are comparable with the equivalent installed hardware devices. Lifetime cost of ownership is low. No hazardous substances used in the units or batteries, so no end of life special disposal costs. Up to 32 devices per translator module and up to 7 expander modules to give enhanced range and coverage. Compatible with leading fire panel manufacturers' addressable protocols. Wireless multi-criteria, optical and thermal detectors. Wireless call point. Wireless sounders and beacons. Wireless input and output modules. Attractively styled detectors are only 65mm deep. Unique decorline optional custom finish.