Simplex 4904-9178 Visible Notification Appliance Wall-Mount SF 22/01 without overloading the main panel

without overloading the main panel

and is used to indicate a fault condition

They connect to the control panel via the RS-485 SBus

which can support 159 SK detectors and 159 SK modules

Simplex 4904-9178 Visible Notification Appliance Wall-Mount SF 22/01 without overloading the main panelSimplex 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.