Dwyer GSTA & GSTC Replacement Gas Sensors

Field replaceable electrochemical carbon monoxide (CO) & nitrogen dioxide (NO2) replacement sensors.

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Features

  • Replacement CO sensor (A-505)
  • Replacement NO2 sensor (A-506)

The Dwyer GSTA & GSTC replacement gas sensors have a 4-year typical life span. The CO (A-505) and NO2 (A-506) sensors are each sold separately and are field replaceable.