Fire Alarm - EN54 - Automatic Fire Detectors
MS 420 LSN Detector Base with Spring

The MS 420 LSN is a detector base designed for use in Great Britain This can be used to mount the MAGIC.SENS LSN Detector as well as detectors from the 420 Series, and has integrated jumper elements that preserve the loop function if the detector is removed. To protect against unauthorized removal, the detector head can be secured with a variable locking.