System Sensor MDL3R Red Sync Circuit Module









SpectrAlert Advance MDL3R is a red, 12/24 volt Sync-Circuit module
Replacement For System Sensor MDL


The MDL3 Module is designed to work with the 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.


Color: Red

Voltage: 12/24V

Operating Voltage Range: 8.5 - 17.5 VDC (12 V); 16.5 - 33 VDC (24 V)

DC Max. Operating Current - Strobe: 10/12

FWR Max. Operating Current - Strobe: 12/15

Operating Temperature: 32°F to 120°F (0°C to 49°C)

Mounting: 4-11/16"x4-11/16"x2-1/8" back box

Dimensions: 5-1/4"L x 5-1/4"W


  • Model: System Sensor MDL3R
  • 0 Units in Stock
  • Manufactured by: System Sensor

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