Honeywell Wall Module, Temperature Only, Two-Wire Sylk

The TR40 is a 2-wire, non-polarity sensitive, Sylk bus communicating wall modules, which communicate with Spyder® and some ComfortPoint™ programmable controllers. The TR40 is a simple LDC temperature wall modules with basic setpoint, override, and fan options, and is designed for a broad range of applications. Models are available that include humidity and CO2 sensing. Product Features Two wire, polarity insensitive Sylk provides both power and communication to the device. Models available without display. Models available with or without built in humidity or CO2 sensors.