CE Certified, UL 94 lsited

• 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 - 10 VDC, 0 - 5 VDC, 4 - 20 mA selectable Mounted on a standard 2 x 4 in junction box or on a 60 mm Dia junction box -40 to 150 deg F shipping and storage temperature Unique 10 kohm non-linear, two 20Ks in parallel 5 - 95% non-condensing humidity For use only when averaging multiple sensors Comments - special 10 kohm for use only when averaging multiple sensors can also be used with T7350, TB8220 thermostats

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.