A NO2 detector is a device that measures the amount of nitrogen dioxide (NO2) in the air. NO2 is produced when fuel is burned and can have serious health consequences when exposure is too high. It is a colorless, odorless gas that is a component of smog and can be found in industrial emissions, vehicle exhaust, and burning of fossil fuels. NO2 detectors measure the level of nitrogen dioxide in the air and can be used to detect the presence of dangerous levels of pollution. They are used in many industries to help monitor air quality and ensure that workers are not exposed to unhealthy concentrations of NO2. NO2 detectors can also be used to measure airborne concentrations at home or in other locations to determine if the air is safe to breathe. They can be used to monitor air quality in outdoor areas such as parks or playgrounds, or to determine the level of pollution in a city or region. NO2 detectors are necessary for keeping the air we breathe safe, and help us