I have the sensor community sensor running for a couple of months now and everything worked fine. Starting a couple of days ago I am getting peaks with measurements at the limit (999.9 for PM2.5 and 1999.9 for PM10) for some minutes (5-10) once a day (varying times during the night). The sensor is mounted on my terrace and in theory accessible, so I cannot exclude that someone is tempering with the sensor and e.g. blowing cigarette smoke in it (don’t know if this could actually cause such high values). Any ideas, whether this could be a technical issue?
Thanks and best wishes,