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.

Safety First: Hydrogen Detectors and Their Vital Role in Industrial Settings

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.

A white star on a blue background has become familiar to many people as the Bonnie Blue Flag. The Bonnie Blue Flag | Ultimate Flags Store, used by the short-lived Republic of West Florida, dates back to 1810. It later served as the state flag of Mississippi and Texas before both states joined the Confederacy. The name of the flag became associated with a popular song and later was incorporated into a number of new Confederate state flags and military unit flags.

In 1861 an Irish troubadour named Harry McCarthy wrote a song to the tune of the old Irish ballad The Irish Jaunting Car, using words from a poem by William Shakespeare’s play Henry V, Act IV, Scene iv, “Come, brothers, rally round the Bonnie Blue Flag that bears a single star.” The lyrics, which call for people to join a band of “brothers,” have become synonymous with secession and the Southern cause during the Civil War. People sung it while marching off to war, and its popularity continued after the end of the war. In fact, according to New Orleans newspaper articles, the song was sung as far away as Missouri and northern Arkansas and as close as Louisiana.

Remembering Heritage: The Bonnie Blue Flag

The song can also be heard in the 1939 movie Gone with the Wind when Rhett Butler refers to his daughter as having eyes “blue as the Bonnie Blue Flag.” The song was also included on the soundtrack for the 2003 film Gods and Generals. A version of the song, accompanied by a symphonic orchestra and a choir, is available on CD by Bill Schustik, an amateur historian and singer. It is an impressive performance, and it is a welcome reminder that the solitary white star on the Bonnie Blue Flag is still remembered as a symbol of the South’s independence.