This smart air quality meter provides accurate monitoring of CO2 /Temperature/ Humidity / /HCHO /PM2.5 /PM10/TVOC Conveniently offer measures 8 important indexes for indoor air quality. Measure Particulate Matter 2.5 Concentration (PM 2.5) - Monitor indoors for dust, pollutants, and other fine particles small enough to enter the respiratory system It can be placed on the desktop, and the back bracket can be adjusted in four gears according to the user's viewing angle requirements to present the best viewing angle; it can be hung , and the screen can be clearly displayed and visible from a long distance. When the concentration of carbon dioxide in the air reaches the warning standard, it will automatically sound the alarm, and the alarm sound can be switched on and off freely. Wide Range of Application Scenarios: It can be applied to air quality detection in , and can also be used in greenhouse air quality detection and adjustment of plant growing greenhouses, or industrial application scenarios that require a specific environment 1.Product Name: Air Quality Detector 2.Model Name: -078 ( Tuya WIFI-BT Version) 3.Detecting Item: CO2 / Temp / / / HCHO / PM2.5 / PM10/TVOC 4.Material: ABS 5.CO2 : 400-5000ppm (50ppm + 6%) 6.PM10 : 0-999g/m 7.PM2.5: 0-999g/m 8.TVOC : 0-9999g/m 9.HCHO: 0-9999g/m 10. : 0-99 11.Temperature : 0-55 (C/F switchable) 12.Humidity : 0-99% 13.WIFI : WIFI function active, display WIFI 14.Battery : Show battery usage and charging status; 15. : value based on PM2.5 value, displaying value will be from 0-99; 16.-Battery: 1000mAh ( Working time: 3-5 Hours ) 17.Type-C Power Supply: 5V/1A 18.WiFi: IEEE802.11/b/g 2.4GHz 19.Bluetooth: BLE5.0 20.Size: 123x86x32mm 21.Weight: 300g 22.Working current: 5V/500mA 23.Rated Power:5W 24.Standby Current:Less than 3mA 25.WIFI supporting: Tuya WIFI+BT CB3S 26.Connecting Platform: Tuya APP / PC tool / Tuya Server Colour:white + black Package Contents: 1 x Air Quality Detector 1 x Type-c charging wire, 1 x Wall-mounted screw/Sticker 1 x English manual Only the above package content, other products are not included. Note: Light reflection 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.