Simplex 4904-9178 Visible Notification Appliance Wall-Mount SF 22/01 high quality Photoelectric Smoke Detectors

high quality Photoelectric Smoke Detectors

They fit into a standard 4‐inch square or double‐gang electrical back box

and is used to indicate a fault condition

The dual function of this single device makes it ideal for installations such as hotels

Simplex 4904-9178 Visible Notification Appliance Wall-Mount SF 22/01 high quality Photoelectric Smoke DetectorsSimplex 4904 Series wall mount visible notification appliances provide symmetrical light output in key axis directions by utilizing a compound, multi surface reflector. The lens assembly fits securely into its housing, providing a high integrity notification appliance that is impact and vandal resistant and suitable for a variety of applications.