Air Quality Monitor Detect Co2,temperature Humidity ,manual Set

Common Screen displayTest variables:Carbon dioxide (CO2),temperature, humidityLarge 1600mAh capacity Lithium battery5V Mini USB chargingLow battery warningProduct SpecificationsDisplay method:Common Screen displayAtmospheric pressure: 86Kpa - 106KpaDetection method for CO2 : Infrared (NDIR)Sampling time: 1.5 secondsDetection temperature: -10 Celsius to 50 Celsius;Relative humidity: 20% - 85%Storage temperature: -10 Celsius to 60 Celsius;Concentration unit for CO2:PPMInstructions1. Start UpWhen you long-press the power button, the air quality monitor willboot up.Product Key function description:1) Power button, long-Press to turn on/off,Double-click to set CO2alarm thresold.(800~2000 ppm)2) Left button, click to decrease CO2 alarm thresold;single-click to open/close CO2 alarm sound.3)Right button, click to increase CO2 alarm thresold. Colour:WhiteMaterial:plasticPackage Contents:1 * Air Quality MonitorPrecautionsAvoid covering the air intake areas during use to avoid inaccurate measurements.Avoid use of solvents to clean the product as residual fumes will skew air quality readings.Avoid water or other liquids near the product to avoid electrical damage.Do not allow unauthorized modification or repair of this product.Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.