Edu-Logger Data Logger Sensors
- Edu-Lab 900-205, This sensor can be used to make measurements of the level of free-oxygen in air or dissolved oxygen in water. The free-oxygen in air mode is used to measure changes in oxygen levels during combustion or in reactions that produce oxygen (hydrogen peroxide decomposition). The sensor should be connected to a voltage source (the USB (Universal Serial Bus) module plugged into a computer, Edu-Logger's™ Display unit or Battery module). For free Oxygen, calibration of the probe is simply achieved in open air, taking this as a standard level of 20.9% (assuming stable level in the Earth's atmosphere at sea-level) & pressing the push-button on the sensor's box for about 3 seconds when the readings are stable. The sensor will then be calibrated at 20.9%. In liquid, the sensor is calibrated to 100% in an Oxygen saturated solution. Edu-Logger Oxygen Logger Sensor