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Physics
Teacher Developed Classroom Tested

Dissolved Oxygen measurements are essential to water quality, Biology, Earth Science and Chemistry investigations. Our DO Sensor accommodates more applications, allowing students to explore these subjects more thoroughly. Wider range (0 to 20 mg/L) ensures the sensor does not top out before the experiment is over. Excellent resolution (0.01 mg/L) allows students to see small changes. The sensor is temperature compensated, an essential feature for consistent measurements.
Typical Applications:
-Measure oxygen consumption by yeast during respiration
-Investigate how the presence of organic matter affects DO levels
-Study biological oxygen demand (B.O.D.)
Specifications and Special Features:
• 0 to 20 mg/L at ±10% of full scale without calibration
• ±0.2 mg/L accuracy after calibration
• 0 to 50 °C operating range
• Easily replaced membrane cartridges maintain sensor performance
Includes one replacement membrane.
Use the Photosynthesis Tank for experiments involving photosynthesis and dissolved oxygen.
The Membrane Replacement Kit includes (1) Syringe, Probe filling solution, Plunger (to change cartridge), (3) replacement o-rings, and (3) replacement semi-permeable membranes.

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