System Sensor MDL3R NEXT This motherboard provides two riser

This motherboard provides two riser inputs that are common to all modules

package of 20

Air duct housings can be equipped with optional relays

Every FDOOT441 unit is a multi-purpose

COMPATIBLE BASES and ACCESSORIES:

System Sensor MDL3R NEXT This motherboard provides two riserThe Sync Circuit module synchronizes SpectrAlert Advance strobes at 1 Hz and horns and chimes at temporal 3 over a single pair of wires. Patented module technology also allows the silencing of horns or chimes on horn strobe and chime strobe models over a pair of wires. The 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