Actually, I'm doing a proyect related to the ozone layer. I'm planning to launch a stratospheric balloon, whit different types of sensors, and the balloon is intended to get into the ozone layer. The payload will be a thermometer, barometer, accelerometer, magnetometer and an ozone sensor all conected to an Arduino Leonardo. The ozone sensor MQ-131, which I have been looking for information, only has a range from 2ppm to 10ppb and the ozone layer it's suppose to have a concentration of 200ppb to 500ppb. I need a sensor which could give that high range.
I would thank you for your answers.