Nitrogen dioxide detector is a dangerous gas that is emitted in many settings. It is primarily created by fuel combustion in diesel engine vehicles and industrial processes. Exposure to nitrogen dioxide can severely irritate airways and aggravate respiratory diseases. Children, elderly people and asthmatics are particularly susceptible to the negative health effects of overexposure.

Nitrogen dioxide detectors monitor the level of this hazardous gas in the workplace and alert users when it has reached harmful levels. They can be used in truck and bus garages, road tunnels, engine repairing shops, factory plants, and other work areas.

The gas detector’s sensor converts the NO2 to an electronic signal that the microprocessor analyzes. It then displays the NO2 concentration and, if the level reaches the set alarm threshold, the user is warned by LED, vibration, or buzzer.

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To detect the presence of nitrogen dioxide, the sensors on these monitors are activated by oxygen molecules and an electrochemical redox reaction. The result is an increase in the conductivity of the sensor and a proportional current that is measured.

These portable gas detectors are designed to be rugged and can withstand the rigors of everyday use in industrial applications. They can be dropped, exposed to extreme temperatures, moisture, dust, mud or sludge, and even the occasional blow from an impact. For this reason, manufacturers recommend bump testing gas detectors regularly to ensure that they continue to function properly. This can be done easily with a simple, cost-effective kit.