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AlphaSense O2-A3 Oxygen Sensor

AlphaSense O2-A3 Oxygen Sensor
Regular price $99.00 USD

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The AlphaSense O2-A3 oxygen sensor is designed for low-oxygen safety applications. It does not require power. Instead, it is like a "battery" that generates micro-amperes proportional to the ambient oxygen level. It uses capillary flow control to provide good pressure and temperature dependence.

  • 0 to 25% oxygen sensor
  • Does not require calibration
  • Up to 3 year lifespan
  • Small, compact and maintenance free

This oxygen sensor is a plug-in replacement part for many OEM products including our RAD-0200 Oxygen Storage Safety Alarm. See the sensor replacement video.

Specifications

  • Measuring Gas: Oxygen
  • Sensing Method: Electro-chemical
  • Measurement Range: 0.1 to 25%
  • Life Time: > 2 years until 85% original output of 20.9%
  • Output Drift: < 1% change in output @ 3 months
  • Response (t90): < 15 sec.
  • Temperature range: -30-55°C
  • Pressure range: 80-120 kPa
  • Humidity range: 5-95 %RH

Electrical

  • Output @ 20.9% O2: 80-120 uA
  • Zero current @ 0% O2: < 2.5 uA
  • Load resistor (Ohm) recommended: 47 to 100

Warranty

  • 90 Days

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"Swift response and shipment. The product is easy to setup and use. It is just what I was looking for."

- Shima Tomohiro

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