Resideo - Honeywell Home THX1100B4 Smart Thermostat

The Resideo - Honeywell Home THX1100B4 ElitePro S1100 smart thermostat is a reliable Wi-Fi control with a 5-inch color touchscreen for residential and light commercial 24 VAC systems. Finished in black, it supports systems up to 4H/2C heat pump or 3H/3C conventional, controls up to two IAQ devices, and monitors indoor humidity, VOC, and estimated CO2. Redlink 3.0 technology connects wirelessly to room sensors, outdoor sensors, and an optional equipment interface module (EIM).