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T675A/B and T678A temperature controllers regulate the temperature of air or liquids in ducts, pipes, tanks, and boilers. Typical uses include control of dampers and valves in heating, cooling, or heating-cooling systems.

T675A/B and T678A Temperature Controllers

TR20 Series are a family of direct-wired wall modules that are compatible with many Honeywell controllers.

TR20 Series

The TR40 and TR42 series of room sensors and displays are designed to operate with Honeywell controllers. All models have an integral temperature sensor and variants are available that include sensors for relative humidity and/or CO2 concentration.

TR40 and TR42 Series

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