System Sensor D4120

System Sensor D4120The InnovairFlex D4120W watertight 4 wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing and hose directed water. D4120W duct smoke detector features a pivoting housing that fits various applications: both square and rectangular footprints mount to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in

making it ideal for environments where clear notification is essential

The design of the resistor network

No supervision is provided for the notification appliance circuit

NEW PRODUCTS: Some items may have a slightly different appearance in size

North American standard 4 in

Model SR-35 contains eight (8) independent relays with SPDT contacts rated at 2 Amps max

24-277 VAC Supply Voltage

Download WFPA-R Installation Manual (PDF)

The SK-4/E NAC protocol includes the ability to silence audible devices while strobes continue to flash

ER-6F 2006

while the SSV series operate on 120VAC utilizing a vibrating mechanism

and a heavy-duty electromagnet