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The Series 2000 C7031 Electronic Temperature Sensors are designed for use with electronic controllers in domestic or commercial heating and cooling systems.


  • C7031B sense duct air temperature
  • C7031D for immersion mounting sense water temperaturefor hot and chilled water
  • C7031G sense outdoor air temperature and are weatherproof for outdoor use (knockouts allow for 1/2 in. conduit connection)
  • C7031J sense average duct air temperature
  • Solid state components not affected by dust or dirt
  • 1097 Ohms PTC sensor provides accurate sensing of temperature changes.

Product Specifications

Hot or chilled water
Dimensions (in.)
4 3/16 in. high x 2 5/16 in. wide x 1 11/16 in. deep
Dimensions (mm)
107 mm high x 59 mm wide x 43 mm deep
Used With
Excel 500, T775 Series 2000
Item Type
PT1000, 1097 ohms @ 77 F
Operating Temperature Range (F)
-40 F to +250 F
Operating Temperature Range (C)
-40 C to + 121 C
Insertion Length (in.)
5 in.
Insertion Length (mm)
127 mm
Ambient Temperature Range (F)
250 F Maximum
Ambient Temperature Range (C)
121 C Maximum
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