Detection of High Concentration Ammonia


The Maxell Oxygen Sensor SK-25 is a unique galvanic cell type oxygen sensor.

Its most notable features are no influence from CO2, good linearity up to 30% oxygen, and excellent chemical durability. This feature makes the sensor ideal for oxygen monitoring in various applications such as combustion gas monitoring, the biochemical field, domestic combustion appliances, etc.



  • Virtually no influence from CO2, CO, H2S, NO, H2
  • Temperature compensation circuit included
  • Good linearity
  • No position dependency
  • Stable output signal
  • No external power supply required for sensor operation
  • No warmup time is required
  • Industry standard package


  • Safety - Oxygen monitors
  • Environmental controls - Combustion gas monitoring
  • Food industry - Refrigeration, greenhouses
  • Education – Science lab instruments

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