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The System Sensor D4240 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork
Edwards EST M501MF Intelligent Addressable Mini Monitor Module provides an address for a group of Normally Open (N
“hard” keys with fixed control functions
Powered directly by two-wire SLC loop
Silent Knight SK-MINIMON Intelligent Mini-Monitor Module JOHNSON CONTROLS M500MJ The System Sensor D4240 4-wireThe SK MINIMON is an addressable monitor modules for use with the Honeywell Silent Knight fire alarm control panels (FACPs). The SKMINIMON acts as an interface to contact devices, such a waterflow switches and pull stations. The SK MINIMON supports Class B supervised wiring to the load device. Conventional 4 wire smoke detectors can be monitored for alarm and trouble conditions. The SK MINIMON can be mounted in a single gang junction box directly