1、For formaldehyde HCHO, chemical pollutants TVOC, carbon dioxide CO2, 0.001mg/cubic meter thousand-digit accuracy. 2、Use imported brand air quality detection and analysis chips to ensure more accurate instrument detection. 3、Air monitoring can be carried out uninterruptedly to ensure timely detection of air quality problems. 4、Adopt natural air flow detection technology to more accurately determine air quality problems. 5、LED LCD color screen digital display, data hierarchy is clear, the display is clearer. 1 x Air Quality Detector 1 x USB Data Cable1 x Manual    Item Type: Air Quality DetectorMaterial: ABS + Electronic ComponentsProduct Size: Approx. 125 x 80 x 35mm / 4.9 x 3.1 x 1.4inWeight: Approx. 219g / 7.7ozDisplay Mode: LED Digital Display + Light IndicationError Fluctuation: 3%-30%Working Voltage: 5VPower-on Warm-up: 120 SecondsBattery Capacity: Lithium Battery 1000 MAh (Built-in Battery Shipped)Charging Time: About 4 HoursStandby Time: About 180-240 Minutes Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.