As early as 1992, MESA successfully utilized Lambda probes as oxygen probes in the heat treatment field. In 1993, MESA further employed Lambda probes and dew point controllers in adsorption-type gas generators, thereby bringing significant changes in cost, precision, and lifespan to the critical process steps of heat treatment, earning widespread recognition from customers. Currently, in the heat treatment industry, such as in major industrial furnaces and automotive parts manufacturing in Europe, the original conventional oxygen probes have largely been replaced by sampling-type oxygen probes (i.e., Lambda probes).

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