Get the arrant 4 here - amzn.to/3TSehl5
What's the air quality in your house? How about your office? What about the classroom where your kids sit all day? Now you can know with the aranet4. The aranet 4 is a wireless sensor that measures carbon dioxide (Co2) temperature, relative humidity and atmospheric pressure. You can set it to take readings every 1 min. 2 min. 5 min. or 10 min. and have the data in graph form go directly to your smartphone.