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Wireless, digital temperature selector

Product Description

T87/Y87 is a family of modern digital room thermostats available in both wired and RF models and capable of Connected operation via a Honeywell RFG100 internet gateway.

Output configurations include modulating (OpenTherm(R)) and on/off. Wired OpenTherm(R) models are powered by the OpenTherm(R) bus. The room units for all RF models are powered by 2 x AA alkaline batteries. Applications include direct boiler control or as the room unit in a multi-zone control system, providing room temperature measurement and setpoint adjustment functions. Compatible zone controllers are Evohome and the HCE80 underfloor heating controller.

Technical Properties

  • CE
  • WEEE
  • RoHS
Switch function/capacity

AN/AUS über BDR91

Language option


Ambient temperature 0 ... 40 oC
Product description

RF Steuerung, verknüpfbar

  • Single zone thermostat, offering Connectivity as an upgrade
  • Connected models allow remote operation and scheduling via the Honeywell TCC app for smartphones or tablets
  • Modern, stylish design to fit any decor
  • Compatible for retrofit with previous generations of T87
  • Simple intuitive operation by rotating dial
  • Large backlit display
  • 0.5C accuracy
  • Installer mode, allowing setting of maximum and minimum set temperatures and default off setpoint
  • A range of models to suit different installations or applications
  • Battery-operated models use 2xAA alkaline batteries. Minimum battery lifetime 2 years, with battery low warning indicator
  • Control forms are either Modulating (via OpenTherm(R)) or TPI. See Technical Data and Options for more information
  • Suitable for wall mounting
  • Wireless models have 2-way RF communication on 868 MHz band, offering a typical range of 30 m in buildings
  • Wireless control of remote boiler using BDR91 relay box or R8810 OpenTherm(R) bridge
  • Suitable for use as the room unit in systems containing Evohome or HCE80 underfloor heating controller

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