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Vernier Dissolved Oxygen Sensor
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You can make fast, accurate measurements of dissolved oxygen concentration in water samples using the Dissolved Oxygen Probe. This probe has a range of 0 to 14 mg/L (ppm) of dissolved oxygen. It has built-in temperature compensation, which means you can do your calibrations in the lab, and then make measurements outdoors without having to recalibrate. The probe has a fast response time, reaching 95% of full reading in 30 seconds. This probe is great for biology, chemistry, ecology, or integrated science courses.
Calibration is easy with this sensor. Simply place the electrode in the zero-oxygen solution provided with the probe for the 0% calibration point. For the 100% calibration point, place the electrode in air (or better yet, in water-saturated air, using the provided calibration bottle). The probe can be calibrated in any units you choose: % Dissolved Oxygen, mg/L, or ppm dissolved oxygen.
Specifications
- Range: 0 to 15 mg/L (or ppm)
- Accuracy: +/-0.2 mg/L
- Resolution, 12-bit (LabPro, Go! Link, ULI II, Serial Box): 0.007 mg/L
- Response Time: 95% of final reading in 30 seconds, 98% in 45 seconds
- Temperature Compensation: automatic from 5 to 35 deg C
- Pressure Compensation: manual, accounted for during calibration
- Salinity Compensation: manual, accounted for during calibration
- Minimum Sample Flow: 20 cm/s
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