in 1 Indoor Air Quality Monitor Temperature and Humidity Tester Colorful LCD Display White for Home Office Temp Humidity Monitor,Air Quality Tester

The detector works fine most of the time but at least twice a day if left on it will cascade into increasingly higher values for all 3 air quality measurements to the point where if it were accurate i'd be dead, after turning it off for 5 mins it will return to normal. The temperature and humidity readings at the bottom seem accurate as they tie up with my other temp/hum sensors dotted around the apartment.