20 K ohm NTC non-linear Temperature Wall Module Zoom

20 K ohm NTC non-linear Temperature Wall Module


Brand: Honeywell

Qty Price
/ each
$144.50 / box (10 units x $14.45)
In Stock! Ships in 24-48 Hours
(77 Available)

Description for Honeywell TR21

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. All models have a space temperature sensor. (Please note: a separate sensor does not come with the unit. This product is the module only).


  • Models available with user selectable setpoint 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
  • LONWORKS network jack on all models except the TR21 and TR21-A models
  • Models available with on board humidity sensor, humidity output: 0-10Vdc, 0-5 Vdc, 4-20ma selectable.

  • Description: Wall module with temperature
  • Application: Networked Sensor
  • Sensor Type: 20 K ohm NTC non-linear
  • Color: White
  • Mounting: Mounted on a standard 2 x 4 inch junction box or on a 60 mm diameter junction box.
  • Operating Humidity Range (% RH): 5 to 95% RH, non-condensing
  • Operating Temperature Range (F): 45 F to 99 F
  • Dimensions (in.): 4 13/16 in. high x 3 in. wide x 7/8 in. deep
  • Used with: Spyder, Excel 600, 500, 100, 80 and Excel 10, 15 Series Controllers
  • Also Used With: T7350 and TB8220 Thermostats

20 K ohm NTC non-linear Temperature Wall Module

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