CO2 Detector, Simbow 3-in-1 Indoor Air Quality Monitor Ambient Temperature and Humidity, 400~5000 ppm, Rechargeable Battery Pollution Tester, Automatic Calibration CO2 Meter with Doodle Emoji.
- [EASY CALIBRATION]:The CO2 air quality detector uses non-dispersive infrared technology (NDIR). Long Press A+B buttons for 10 seconds to manually calibrate the monitor to get accurate reading, recommend to calibrate once per month..
- [HIGH ACCURACY]:The indoor air quality detector is built in NDIR infrared sensors that can accurate detect air of Carbon Dioxide(CO2)..
- [MULTIPLE ALARM]:The air quality tester with multiple alarm, 3-color light indicator and 3 facial comfort expressions. You can intuitively understand the air quality you breathe..
- [PORTABLE AND VARIOUS USE]:Size: 83*83*32 mm. It's easy to carry. The intelligent air quality monitor can help us detect the gas air pollution in household, kitchen, bedroom, office, school, car, hotel, travel, camping, party etc...especially in which has baby,child and pregnant woman..
- [2400mAh RECHARGEABLE LITHIUM BATTERY]:Built with 2400mAh Rechargeable Lithium Battery and packaged with one USB cable, the standby time can last for 8 hours. If you are not 100% satisfied with your new air quality monitor, just let us know! Contact us via Amazon and we can help with any issues that you may have..