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The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration.
The TGS 832 has high sensitivity to R-134a, the most promising alternative to R-12, commonly used in air conditioning systems and refrigerators. R-12 and R-22 are also detectable by TGS 832. With its good long term stability, TGS 832 is an excellent, low-cost sensor for CFC detection.

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Specifications: 

  • range:10-3000 ppm 
  • sensitivity (change ratio of Rs) : 0.5~ 0.65 
  • Circuit Voltage:Max. 24V (DC only 
  • Heater Voltage:5.0±0.2V DC/AC 


Features:

  • High sensitivity to R-134a 
  • Quick response to R-134a 
  • Improved selectivity 
  • Long term stability 
  • Uses simple electrical circuit 
  • Ceramic base resistant to severe environment 

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