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Gas sensor with high sensitivity to refrigerant gases commonly used in air conditioning systems and refrigerators such as R-134a, R-404a, R-407c, and R-410.
TGS832-A00 has a gas diffusion hole in the sensor cap as well as in the sensor base.
Using the sensor with a suction pump, response time can be accelerated.
In the presence of the gas to detect, sensor conductivity increases according to 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.