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Honeywell TR21 Remote Temp Sensor, Wall Module, 20K Ohm
Honeywell TR21 Remote Temp Sensor, Wall Module, 20K Ohm
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The TR21, TR22, TR23, and TR24 are a family of direct wired wall modules for use with Honeywell Excel 600, 500, 100, and 80 controllers; Excel 10 W7750, W7751A, W7752, and W7753 controllers; W7761 Controller; and Spyder Unit...

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Product Review

The TR21, TR22, TR23, and TR24 are a family of direct wired wall modules for use with Honeywell Excel 600, 500, 100, and 80 controllers; Excel 10 W7750, W7751A, W7752, and W7753 controllers; W7761 Controller; and Spyder Unitary Controllers.

  • Models available with user selectable set point adjustment dials in Fahrenheit, Celsius and Relative Scales!
  • Models available with occupied/unoccupied override (bypass) with LED!
  • Models available with 3-position (auto/0/1) or 5-position (auto/0/1/2/3 speed) fan switch!

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