Sensors That Make Buildings Smart!
Gas Reference Library
Oxygen Characteristics
Understanding the Difference in Sensor Types (TBA)
TR3210 Wiring
TR3210 Figure 1
TR3210 Figure 2
CT1000 Layout
CT1000 Wiring
CT1000 Figure 1
CT1000 Figure 3

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Models TR3210-O2 and CT1000
Oxygen (O2)


  • water treatment
  • pools
  • food processing


Key Features - TR3210

  • high accuracy electrochemical sensor
  • replaceable sensor element
  • linear output
  • rugged enclosure
  • 18 month life
  • CSA certified
  • Now also available with LonWorks® communication capability.

Model TR3210-O2

  • Temp Range : -4 to 122ºF (-20 to 50ºC)
  • Output: 4-20 mA (non linear)
  • Can be used with CT1000 Controller to provide high and low relay activation
  • Power: 12-30 VDC
  • Measures: 0-25% Oxygen
  • Calibration: 1 year recommended
  • Also available with LonWorks® communication

Datasheet Manual


Model TR3210-O2-Lon

  • Same performance as TR3200-O2 above.
  • LonWorks® Network Variables: nviRequest, nciMaxStsSendT, nvoStatus
  • LonWorks® Sensor Variables: nvoSensorValue (% of range), nvoSensorInv, nciMiniDelta, nciSnsrSmplRate

Datasheet Manual


Model CT1000


  • Note: When Used with the TR3200 controller it is not integrated with sensor. Must be ordered and installed separately.
  • Temp Range :-4 to 122ºF (-20 to 50ºC)
  • Integrated high and low concentration relays(5A).
  • Power options: 24 VAC, 115 VAC, 220 VAC
  • User adjustable delay for on-time (up to 30 minutes).

Datasheet Manual
Published: February 16, 2004 Last Updated: May 22, 2013