Due to industrial development and urban vehicle exhaust emissions, air quality is becoming worse, and "PM2.5" has attracted widespread attention. PM is the abbreviation for particulate matter, and PM2.5 is also known as fine particles. They can be suspended in the air, and a higher concentration indicates poorer air quality. In order to obtain PM2.5 concentration values in the air in a timely manner, PM2.5 sensor modules are installed in environmental monitoring equipment. Below, we will discuss the selection and application of PM2.5 sensor modules.

Selection of PM2.5 Sensor Modules

As PM2.5 has become a hot topic, many companies have seen the huge business opportunities in PM2.5 treatment. Therefore, many sensors or modules capable of measuring PM2.5 have appeared on the market. In terms of product naming, they are all linked to PM2.5 to attract attention. However, as a product developer, you should carefully screen based on your own product positioning and needs to choose the sensor/module that best suits your product.

PM2.5 sensor modules are generally divided into laser PM2.5 sensor modules and infrared PM2.5 sensor modules. The laser PM2.5 sensor module adopts the Mie spherical particle scattering principle, which can detect particles with a diameter range of 0.1~10μm. It has a wide range of applications, requires no additional air duct design, and is compatible with multi-protocol outputs. It is a high-precision PM2.5 sensor module.

The infrared PM2.5 sensor module is based on the principle of light dispersion. An infrared light-emitting diode emits light that encounters dust to produce reflected light. A high-sensitivity photoelectric receiving sensor detects the intensity of the reflected light and outputs a signal. The concentration of dust is determined based on the intensity and quantity of the output signal. Compared to laser particle sensors, it can only detect particles with a diameter of 0.5μm or more, but the price of the infrared PM2.5 sensor module is half that of the laser sensor module. For equipment with low requirements for particle detection accuracy, the infrared PM2.5 sensor module is a cost-effective particulate matter sensor module.

Application of PM2.5 Sensor Modules

PM2.5 sensor modules can be applied to air purifiers, air conditioners, PM2.5 detectors, range hoods, smoke alarms, fresh air systems, dedicated PM2.5 sensors, air detectors, and other equipment. To provide timely PM2.5 concentration data, Luftmy's main infrared PM2.5 sensor and laser PM2.5 sensor series have different models for manufacturers to choose from. If you want to know about solutions for PM2.5 sensor modules, please contact customer service.