System Sensor MDL3W Siemens a hand-held microphone

a hand-held microphone

The module connects normally‐open (NO) contacts to the multiplex bus of an FPD‐7024

The station is available in the following operational and functional designs: The K-270 Series provides a single action

The Duct Detector Test Switch (Model TSM-1) is a key-activated device that tests detectors for proper

System Sensor MDL3W Siemens a hand-held microphoneThe MDL3 Module is designed to work with the SpectrAlert and SpectrAlert Advance series of notification appliances to provide a means of synchronizing the temporal coded horns and chimes, synchronizing the one second flash timing of the strobe, and silencing the horns and chimes of the horn strobe and chime strobes combination over a two wire circuit while leaving the strobes active.