Infrared dust sensors can be installed in PM2.5 detectors. However, for portable PM2.5 detectors, laser PM2.5 sensors are generally used because they require a fast response and the testing environment may be changing. For some fixed PM2.5 detectors or PM2.5 detectors that do not need to move frequently, infrared PM2.5 sensors can be installed.

Portable PM2.5 Detector

Whether it is an infrared dust sensor or a laser dust sensor, both can accurately measure the concentration of particulate matter in the air unless there are special environmental requirements. The difference is that laser dust sensors are equipped with a fan to generate a stable airflow; once started, they can quickly obtain the PM2.5 concentration value of the current environment. Infrared dust sensors only have a heating resistor inside and no fan. Airflow is generated only after the resistor heats up, creating a temperature difference between the inside and outside of the sensor, allowing it to detect the PM2.5 concentration in the airflow. For this reason, infrared dust sensors are not very suitable for portable detectors.

Portable PM2.5 Detector Structure

Although infrared dust sensors do not have a fan to provide stable airflow compared to laser dust sensors, they have an irreplaceable advantage: low cost, making them suitable for a wider range of products.

Luftmy PM2.5 Sensor

The Luftmy laser particulate matter sensor LD11 is a high-precision concentration sensor based on Laser MIE scattering theory. It can continuously collect and calculate particulate matter concentration distribution and output it via a universal digital interface. The LD11 sensor features a compact size, high precision, strong anti-interference ability, low power consumption, long lifespan, zero false alarm rate, and short response time. Luftmy, a particulate matter sensor manufacturer, provides the LD11 laser sensor which can be embedded in various instruments related to suspended particulate matter concentration, such as range hoods or environment improvement equipment, to provide timely and accurate concentration data.

LD11 Laser Dust Sensor

The Luftmy digital particulate matter concentration sensor HPD05 utilizes the principle of optical scattering to obtain particulate concentration. Through the conversion of light paths and circuits, it measures the dust concentration within the detection range. As a digital particulate matter sensor manufacturer, Luftmy's HPD05 sensor features small size, high precision, low power consumption, short response time, and stable operation under high dust concentrations. This sensor can be applied in air purifiers, range hoods, etc. For more dust sensor prices, please consult online.

HPD05 Infrared PM2.5 Sensor