Specifications
The oxygen sensor is used to measure the concentration of oxygen.The sensor has a connector for connection to the data logger
high school lab equipment
Oxygen Sensor WCY2033
Range:0~20mg/L
Resolution:0.005mg/L
Precision :0.2mg/L
Comes with a 1.8 -inch TFT true color Independent display
Large capacity lithium battery & One calibration key
Typical Experiment:
* Explore the affect of water quality to aquatic life
* Explore dissolved oxygen in different water of quality
* Explore dissolved oxygen in river
* Explore the photosynthesis of plants in water
Product Features
The oxygen sensor is used to measure the concentration of oxygen.The sensor meets the
following requirements:The sensor has a connector for connection to the data logger.The
sensor has a center hole for attaching it during experiments. Degree of protection IP30The
sensor has a measuring range from 0 to 100%;Resolving power: ± 0.1%.Accuracy: ± 0.2%.
Oxygen Sensor Design
The device most widely used at present consists of a stabilised zirconia electrolyte tube
with platinum electrodes deposited on the inner and outer surfaces. With different pO2 on
inner and outer surfaces an EMF is generated. If carbon monoxide is present a further
reaction is possible: 
CO (gas) + O2 (electrolyte) -> CO2 (gas) + 2e- (electrode)
The catalytic reaction at the platinum electrode
CO (gas) + ½ O2 ->CO2
can minimise the above effect. Further reactions can occur when H2, H2O and NOx are
present. The successful application of an exhaust monitor requires a simple and
inexpensive device which is able to operate in a harsh environment at temperatures in the
region of 900°C in the presence of thermal shock.
A typical sensor is shown in the diagram, figure 2, with the format being similar to an 18mm
diameter sparking plug.