Wall Modules

TR20 Series

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

TR20 Series are a family of direct-wired wall modules that are compatible with many Honeywell controllers. These wall modules provide the accurate temperature readings and reliability expected from Honeywell sensors.

Features & Benefits:
  • Sleek design with models for temperature only or temperature and humidity
  • Space sensor, 20K ohm NTC on most models
  • Override button with LED
  • Operating range of 45 to 99 °F (7 to 37 °C)
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3.36 MB
6/28/2022
Installation Instructions
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Description
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TR21-Z
Temperature Sensor, TR21, 20K ohm NTC Non Linear, Replacement
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TR23/U
Temperature Sensor, TR23, 20K ohm NTC Non Linear, Selectable Setpoint, Lon Jack, Override
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TR23-H-KL/B
Temperature/Humidity Sensor, 20Kohm NTC Non-Linear, Lon Jack, Override & LED
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TR21/U
Temperature Sensor, TR21, 20K ohm NTC, Non Linear
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TR21-H/U
Temperature Sensor, 20K ohm NTC Non-Linear, Lon Jack
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TR22-F5/U
20 K ohm NTC Temp Wall Module w/ selectable setpoint, Lon Jack, 5 Fan Switching
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TR21-A-OC/U
WALL MODULE TEMPERATURE SENSOR
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TR23-H/U
Temperature Sensor, TR23-H, 20K ohm NTC Non Linear, Selectable Setpoint, Lon Jack, Override
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TR22/U
Temperature Sensor, 20K ohm NTC Non-Linear, Selectable Setpoint, Lon Jack
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TR21-J/U
Temperature Sensor, 20Kohm NTC Non-Linear, Lon Jack, Replaces T7770A2004