A ozone detector is used to monitor the concentration of O3 (ozone) gas in the air. Ozone in the stratosphere is beneficial because it protects us from harmful UV radiation. At ground level however, ozone is a pollutant that can cause short and long term health issues such as respiratory ailments and lung infections. Individuals with asthma or other respiratory concerns, children and the elderly are especially at risk from breathing ozone.
Detecting Oxygen Levels: Understanding the Function of Oxygen Detectors
The ozone detector works by measuring the absorption of light at 254 nanometers, which is in the ultraviolet range. The light is absorbed by the ozone molecules, which in turn produces an electric current that is measured by the sensor. The sensor then produces a linear voltage output proportional to the concentration of ozone in the air.
There are many different types of ozone gas detectors, ranging from simple single-gas devices to multi-gas monitoring systems with NIST traceable calibration. It is important to do your research and ask questions, particularly about ozone detection capabilities, before selecting a gas detector for your application.
An ozone meter will have a variety of alarm settings including high and low alarms, as well as a convenient digital display that allows for easy readability. Most ozone concentration meters will also be equipped with a rechargeable battery, making it easy to transport and use for extended periods of time.