Features:

Output Options

• 0 to 50 mV analog

• SDI-12

• or hand-held meter

Heated Detector

The gas permeable membrane inlet can be heated to prevent water vapor from condensing and blocking the diffusion path. When sensors are used in soil or compost.

Unique Design

Sensors have an internal thermistor fully sealed for temperature monitoring. Sensors are housed in a polypropylene body for long-term use underground. Two head options include a diffusion head for field use and a flow-through head for laboratory use.

Simple Calibration

Voltage output is linearly proportional to absolute amount of oxygen. Calibration is accomplished by measuring the voltage under ambient conditions (atmosphere is 20.95 % O₂) and deriving a linear calibration factor. A zero offset can be obtained with N₂ gas (recommended for measurements below 10 % O₂).

Typical Applications

• Measurement of O₂ in laboratory experiments or of O₂ gradients in soil/underground

• Monitoring gaseous O₂ in indoor environments for climate control, in compost piles, and in mine tailings

• Monitoring redox potential in soils

• Determination of respiration rates through measurement of O₂ consumption in sealed chambers

Product Specifications:

Manufacturer: Apogee, USA