The HFI-DMBS-05 standard intelligent low profile mounting base has been designed for use with any of the Altair point type intelligent detector range. The base’s layout allows plenty of space for cable access and has multiple mounting-hole positions for use with a variety of back boxes. The unit has terminations for loop wiring, remote indicator connection and termination of shield cabling. When no device is fitted into the base, an automatic spring connection maintains loop continuity ready for loop cable testing. Once the device is refitted the spring is displaced allowing the loop isolators to operate.