Get the arrant 4 here - [ Ссылка ]

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.

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