Yes, the Aranet 4 is even featured on the front page of SenseAir. "We're incredibly proud to have our CO2 sensor Senseair Sunrise inside this popular product."

Yes, the Aranet 4 is even featured on the front page of SenseAir. "We're incredibly proud to have our CO2 sensor Senseair Sunrise inside this popular product." The sensor itself costs $229.00 at co2meter.com.