1. Air Detection: Our smart carbon dioxide value tester gases analyzer is made of precise NDIR sensors, which can accurately monitor CO2 concentration, PM1.0, PM2.5, TVOC, ambient humidity, and temperature values in real-time. 2. Large LCD Display: This carbon dioxide detection instrument has an intelligent color screen display with clear numbers, which are very easy to identify and read. In the alarm mode, the color can be changed to remind the user to pay attention to the environment. 3. : The design of this carbon dioxide detection instrument is very special. When the CO2 concentration exceeds the value of 1500PPM, an alarm will be issued to notify you to keep the indoor environment ventilated in time. You can also manually design the carbon dioxide alarm value. 4. Widely Used: The quality of this carbon dioxide detection instrument is very good and the scope of application is very wide. It is very suitable for office, bedroom, living room, classroom, laboratory, gym, and other occasions. The quality of our smart air quality monitors is very good, allowing you to better understand the indoor air conditions and make adjustments in time to protect and . Together intelligently control the ventilation system, and at the same time can connect to WIFI to view the recorded data on the mobile phone. In alert mode, alert the user to the environment by changing the color. Specification: Product Name: Smart Air Quality Monitor Temperature measurement range: -20C~60C; +/- 2C Humidity measurement range: 5%~95%RH; +/- 5%RH CO2 measurement range: 400-5000ppm, resolution: 1ppm CO2 measurement accuracy: +/- 50ppm or +/- 5% of reading TVOC measurement range: 0~20mg/m3 PM1.0 measuring range: 0~500g/m3 PM2.5 measurement range: 0~500g/m3 Working temperature: 0-50C Working humidity: 0-95% (non-condensing) Input voltage: DC 12V/2A Single output wiring: RS485/relay for CO2, TVOC, PM1.0, PM2.5, and humidity signal output Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Colour: White Material: ABS Size: 18 x 12 x 4cm Voltage: AC100-240V Package Contents: 1 x Carbon dioxide detection instrument 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.