Thermostat Accessories

This collection covers accessories for Honeywell Home and Resideo thermostats. It includes replacement keys for TG series thermostats, Premier White cover plates and wall plate assemblies for FocusPRO and PRO series, a SuitePRO junction box adapter kit, TH135 and TH146 wall plates, and indoor/outdoor 10K ohm temperature sensors.

Check the thermostat model number before ordering, since cover plates and wall plates are sized to specific series. Use a cover plate to hide old paint marks or mounting holes when replacing a larger thermostat. For remote sensors, confirm the resistance value and that the thermostat accepts an outdoor or indoor sensor input.

See also: Programmable Thermostats, Non-Programmable Thermostats, Thermostat Wire.

Frequently asked questions

Which cover plate fits my thermostat?

Cover plates are sized to a thermostat series, so match the series in the product title, such as PRO, FocusPRO, T Series or Prestige. A larger plate hides paint marks and old mounting holes left by a bigger thermostat.

What if my wall has no C-wire?

A C-wire adapter such as the Honeywell Home THP9045A1023 WireSaver adds a common wire at the equipment, so you can power a Wi-Fi thermostat without pulling new cable.

Do you carry thermostat guards?

Yes. Honeywell TG510, TG511 and TG512 universal thermostat guards come in small, medium and large sizes, in clear or beige, with replacement keys sold separately.