This air quality monitor has the function of measuring PM2.5, PM10, counting of dust particles, temperature and humidity. The product is provided with high measurement accuracy, stable performance and simple operation and convenient to carry. It is suitable for indoor environment of family, office, inside of cars and natural environment, etc.Features:Display of representative color for pollution level.Support measure PM2.5, PM10, counting of dust particles, temperature and humidity.High measurement accuracy, stable performance ,and simple operation.It will power off automatically if there is no operation within 2 minutes at power-on state.Widely used for determination of indoor and outdoor public environment and atmospheric environment.Specification:Model: HT-9600Color: GreyPrinciple of PM2.5 Sensors: Optoelectronic typeSampling method: Pumping typeLight sources: Laser diodeGrain size channels: 0. 3um, 2.5um, 10 umFlow: 1L/minMeasurement range: 0-1000ug/m3Resolution ratio: 1ugTest method: ManualSampling time: 50sSampling method: Pumping typeTypical Accuracy: <20%Concentration unit: Piece/L, ug/m3Temperature range: 0-50CTypical Accuracy: 1Humidity range: 0-99%RHTypical Accuracy: 2%RHWork temperature: -10~50Working humidity: 10~90%RHStored data: 1999 setsAutomatic power off: 2 minutes (no key operation)Startup current: 120mAWorking current: 200mADisplay method: LCD value display, Color backlight Screen size: 2.8 inchesScreen resolution: 320*240Battery: 18500Battery / 3.7V, 1400mAH (Included)Size: Approx. 245*85*40mm/9.6*3.3*1.6inchWeight: Approx. 1031g / 36.4ozSchematic diagram of concentration gradeAir quality levelPM2.5 averagestandard value in 24 hoursGreenExcellent0-35YellowGood35-75OrangeSlight pollution75-115PurpleModeratepollution115-150BurgundyHeavy pollution150-250RedSerious pollution>250Package List:1 x Air Quality Monitor1 x Box1 x User Manual1 x Plug1 x Data LineNote: 1. The electronic sensors and microprocessors used on the product belong to accuracy electronic device. The product must be kept away from water, fire, inflammable oil and gas or sites with strong electromagnetic interference to prevent influence on/damage to the device.2. Don't block; or avoid strong air or hot air blowing to the air inlet for air sampling.3. Please use dry cloth to wipe the instrument case. Don't use damp cloth or corrosive detergents.4. Don't dismantle and remodel the product without authorization..5. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.6. Please note that the warm-up time is 120 seconds, and it is normal to display 0 when it is about 65 seconds.