We are currently looking for a NO2/NOx sensor for a research project. This will be attached to a multicopter drone and will measure the NO2/NOx concentration in a vertical profile in the lower atmosphere. The sensor needs to meet the following requirements:
Mass: max. 1.5kg
Max. dimensions: 300x80x80 mm
Power supply: <= 24V
Protocol: I2C, serial or CAN (has to work with Raspberry Pi or Arduino)
Humidity range: 10-90% r.H.
Heated: Yes (to allow measurements at higher humidities)
Measuring range: 0-1 ppm (or higher, as long as the measuring accuracy does not suffer)
Linearity: 4% of reading < 5 ppb
Response time: < 180s
Zero drift and span drift: < 6 ppb in 12h
Does BOSCH sensors offer a sensor that meets these reuqirements?
Does your requirement only detect NO2/NO?
Bosch sensortec gas product:
I correct previous link, you could access it now.
BME68X couldn't support to detect NO2/NOx. The gas sensor can detect Volatile Organic Compounds (VOCs), volatile sulfur compounds (VSCs) and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range. Detailed information, you could see it from https://www.bosch-sensortec.com/products/environmental-sensors/gas-sensors/bme688/