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HW TR21/U

20K OHM ROOM SENSOR

Sensor, Networked 20k Ohm NTC Non-Linear

Product Info

Commercial Temperature Sensors

TR20 Series Wall Module

  • 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
  • LonWorks network jack on all models except the TR21 and TR21-A models
  • Models available with on board humidity sensor, humidity output: 0 to 10VDC,
    0 to 5VDC, 4 to 20mA selectable
  • Mounts on standard 2" x 4" junction box or on a 60mm diameter junction box
  • Operating temperature range: 45° to 99°F (7° to 37°C)
  • Set point temperature range: 55° to 85°F (13° to 30°C)
  • UL Listed UL94 plastic enclosure, CE approved

(a) 20k Ohm NTC non-linear sensor
(b) 10k OHM Non-Linear, (2) 20k’s in parallel



Item Specifications

  • 4 - 20mA
  • Networked Sensor (a)
  • 0-10VDC
  • 0.20 lbs per EA