HONEYWELL W8665E1000 Premier White« Chronotherm IV Wireless RF Zone Panel Receiver with up to 3 Heat/2Cool stages. Radio Frequency (RF) Receivers provides 24 Vac control of heating and cooling systems. Use with T8665A Wireless Chronotherm IV Plus Thermostat.
Ľ W8665A can be used with 1H/1C single-zone conventional applications.
Ľ W8665E can be used with up to three zones when used with a Honeywell Zoning Panel.
Ľ Ideal for retrofit zoning or when current thermostat is in a poor location.