The T87 is a range of modern digital room thermostats available in both wired and wireless versions, with the option for remote access via the Honeywell RFG100 internet gateway. This room unit is powered through a wired connection to the OpenTherm bus. Possible applications include direct autonomous control of the heat source or use as a sensor for measuring and setting temperature within a multi-zone control system. In the latter case, they are designed for Evohome zone controllers and the HCC100 underfloor heating controller.

Main Features

• Single-zone thermostat with the option to expand remote access via the Connected mobile app
• Connected models allow control and settings through the Honeywell Total Connect Comfort Connected app for smartphones and tablets, with a modern stylish design suitable for any interior
• Simple intuitive operation with a large rotating backlit display
• Control accuracy of +/- 0.5 °C
• Service mode allows changing the max. and min. set temperature
• A range of models available for different installation methods and uses
• Wireless models operate based on 2-way communication at a frequency of 868 MHz with a typical signal range of 30m in standard residential buildings
• Wireless control of the heat source is done via the HCC100 relay switch 

Location