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Dry Bulb Temp Sensor


4 or 20ma dry bulb temperature sensor for supply duct or return air

  • Product Info
  • Literature


Selectable outdoor temperature sensor for use with W7212 and W7459 economizers for referential dry bulb changeover.


  • Senses temperature of outdoor air and provides a signal to economizer control with OK or not OK to economize.
  • Selectable dip switch provides 8 change over temperature options.
  • When temperature of outdoor air is below change over temperature, the outdoor air damper is opened to reduce the cooling load in the building.
  • Provides 4 OR 20 mA output signal to economizer control; At 4 mA not OK to economize, 20 mA OK to economize.
  • Highly accurate microprocessor control.
  • Sensor is enclosed in a rugged, corrosion-resistant plastic case.
  • Replaces C7650 temperature sensors and the control function of temperature change over in the economizer control.

Product Specifications

Selectable Temperature Sensor for Duct outside (supply) or return
Dimensions (in.)
4 5/32 in. high x 3 7/8 in. wide x 1 in. deep
Dimensions (mm)
81 mm high x 96 mm wide x 25 mm deep
Used With
W7210, W7212, W7213, W7214, W7215, W7459, W7460
Item Type
Mounted in any position where it is exposed to freely circulating air
Approvals, Underwriters Laboratories Inc.
Flammability Rating 94-5V (cUL)
Electrical Connections
Two 1/4 in. quick-connect terminals
4 or 20mA Output
Operating Temperature Range (F)
-40 to 150 F
Operating Temperature Range (C)
-40 to 66 C