The air quality and environmental monitoring instrument is mainly used for real-time monitoring of pollutant concentrations in the air, including PM2.5, PM10, sulfur dioxide, nitrogen oxides, carbon monoxide, volatile organic compounds (VOCs) and other indicators. Through high-precision sensors and data analysis technology, it provides real-time feedback on environmental changes. The air quality and environmental monitoring instrument detects the concentration of pollutants in the air in real time through multi parameter sensors, and combines IoT technology to achieve data transmission and intelligent warning.
working principle
Gas detection: The principle of constant potential electrolytic sensors is usually used. When monitoring gases such as sulfur dioxide and nitrogen dioxide, the air pump sends ambient air into the sensor chamber. The gas undergoes oxidation or reduction reactions on the working electrode, and the generated current signal is proportional to the gas concentration. After amplification and A/D conversion, the concentration data is obtained.
Particle detection: Generally, the principle of light scattering is used. When laser irradiates particles in the air, scattered light is generated, and the concentration of particles is calculated by measuring the intensity of the scattered light, such as monitoring PM2.5 and PM10.
Main functions
Real time monitoring: It can detect the concentration of pollutants such as PM2.5, PM10, carbon monoxide, nitrogen dioxide, ozone, sulfur dioxide, TVOC in the air in real time, as well as meteorological parameters such as temperature, humidity, air pressure, wind speed, and wind direction.
Data storage and transmission: With data storage function, it can store a large amount of monitoring data, and support multiple transmission methods such as RS485 and wireless 4G to transmit data to the monitoring center or cloud.
Alarm function: When air quality indicators exceed the set threshold, relevant personnel can be alerted through sound and light alarms, SMS notifications, and other means.