The RESIDEO THX1100B4/U S1100 Elite Pro Smart Programmable Thermostat delivers a modern design with a 5 inches customizable touchscreen and advanced indoor air quality (IAQ) control. It works with residential and commercial systems up to 4H/2C heat pump or 3H/3C conventional. Ideal for homes prioritizing indoor air quality.
Key Features
Features a 5 inches customizable touchscreen
Offers advanced indoor air quality (IAQ) control
Compatible with Pro-IQ services
Technical Specifications
Works with
Residential and commercial systems up to 4H/2C heat pump or 3H/3C conventional
Control
Up to 2 IAQ devices with configurable outputs
Monitor
Indoor humidity, VOC, and estimated CO
Compatible with
Dual fuel, fan-coil, PTAC, and radiant systems
Advanced occupancy detection
Helps save energy
Redlink 3.0 technology
Connects wirelessly with Room Sensors (temp, humidity, and motion), EIM, and Outdoor Sensors (temp and humidity)
Prioritize the comfort
Of the room of choice with remote Room Sensors
Warranty
5-year warranty
Added Pro-IQ benefits
Create, save, and apply installation templates using the Resideo Pro app for fast setup and reduced errors. Display company info on-device and in-app for easy customer contact. Monitor HVAC alerts and remotely modify settings to quickly resolve customer issues
Domestic / Import
Import
Connectivity
Bluetooth, Redlink, Matter, Wi-Fi
Dimensions
5.24 in W x 3.54 in H x 0.96 in D
Power Source
Hard Wired
Series
ElitePRO
Type
Touchscreen
WiFi
Yes
WiFi Specifications
2.4 and 5GHz
RedLINK
Yes, 3.0
Includes
ElitePRO S1100 Series Thermostat; UWP Wall Plate; Decorative Cover Plate with J-Box Adapter; Mounting hardware; Literature
Utility Rewards
Yes
Stages
Up to 4 Heat/2 Cool Heat Pump systems; Up to 3 Heat/3 Cool for conventional systems
Modes of Operation
Heat; Off; Cool; Auto; Emergency heat
Program Type
Time-Based or Smart Away; Residential or Commercial
Display Language
Display selectable for English, French, or Spanish
Displayed Information
Indoor Humidity; Outdoor Temperature; Time; Current Setting; Current Temperature; Thermostat Controls; Down Arrow; Up Arrow
Energy Star Certified
Yes
Features
Digital Display; ENERGY STAR Certified; Utility Rewards; Video Doorbell Integration; Air Quality Monitoring; WiFi Connection; Touchscreen Display