Supported Devices/Honeywell/T10+ Pro Smart Thermostat with RedLINK® 3.0 - no sensor

T10+ Pro Smart Thermostat with RedLINK® 3.0 - no sensor

The Honeywell THX321WF3003W/U T10+ Pro Smart Thermostat with RedLINK 3.0 (No Sensor) is a smart Wi-Fi thermostat designed for advanced climate control in residential HVAC systems that uses RedLINK® 3.0 wireless technology to communicate with optional room sensors (sold separately) for more precise comfort management. It features a color touchscreen, flexible scheduling (including geofencing and time-based programs), and compatibility with major smart home ecosystems via the Resideo app, allowing remote control and automation. The thermostat supports multi-stage heat pump and conventional systems, ENERGY STAR® efficiency, and can integrate with additional indoor air quality products to manage humidification, dehumidification, and ventilation, making it a scalable solution that adapts to different home comfort needs.

VariantDefault Variant
ColorWhite
IDTHX321WF3003W/U
Brand
Logo of HoneywellHoneywell
Emergency HeatingYes
Heat PumpYes
Occupancy DetectionNo
Demand ResponseYes
Humidity MonitoringNo
Temperature MonitoringYes
Eco-modeNo
Live
Honeywell Resideo
T10+ Pro Smart Thermostat with RedLINK® 3.0 - no sensor

T10+ Pro Smart Thermostat with RedLINK® 3.0 - no sensor

Control This Device With Seam API and Honeywell Resideo

Connect your Honeywell Resideo with Seam API to use these features.

Capabilities

What you can do with this device, using Seam API.

Heating
Live
Cooling
Live
Fan
Live
Auto
Live
Schedules
Live

Device Connectivity

This device can be reached remotely without any additional equipment.

Smart Locks
Access Systems
Knowledge
Thermostats
Sensors
© 2025 Seam Labs, Inc.