AirKnight 9-in-1 Indoor Air Quality Monitor, Portable CO2 Monitor | VOC Sensor | Formaldehyde Detector AQI PM2.5 + 4 More Home Monitoring | Air Quality Tester for Confined Space

CRITICAL NOTE: Please be aware of the auto shutdown feature of the AirKnight AK1000 which causes it to turn off after 11 hours of use in order to prolong the life of the product and recalibrate the sensors. You may turn this setting off if you choose and have the device continuously operate. Features include the following… Ultra-precise sensors that detect air pollution in just seconds Lasting 3000 mAh rechargeable Lithium-Ion battery power that continues working for hours at a time Easy to read display screen designed for a sleek, sophisticated look Stress-free set-up with no Wi-Fi, apps or tech knowledge required …and the reliability of a tried & tested product backed by AirKnight, an American company