This product is lightweight, you can carry no matter where you go and know the air quality anytime.
Range: 0~3mg/m Resolution: 0.001mg/m Accuracy: + 10% or 0.02mg/m Automatic shutdown: 30 minutes. Use time: about 7 hours. Charging time: about 3.5 hours. Working temperature: -10 degree C~40 degree C Working humidity: 20~90%RH Power supply: built in 3.6V lithium battery Size: 74mm * 71mm * 27mm Weight: 60g