HONEYWELL XRM-24 SF 30/10 One D7039 Multiplex Expansion Module

One D7039 Multiplex Expansion Module is required in the system to use the D7042/D7042B Eight Input Remote Modules

It is an electronic detection system used to measure the concentration of Carbon Monoxide and provide feedback and automatic exhaust fan control to help reduce CO concentrations in parking garages

With the widest frequency response range (300 to 8000 Hz) in the industry

providing early warning of potential CO hazards

• No longer needed/wanted

HONEYWELL XRM-24 SF 30/10 One D7039 Multiplex Expansion ModuleThe XRM 24 is a 24 volt, 100VA transformer which, when installed, will provide maximum accessory power. The XRM 24 mounts on two studs located in the backbox below the factory installed standard transformer.