Product Description

PM***1 dust sensor module is used to measure dust concentration.
Led dust sensor module PM***1 adopt the principle of optical scattering to detect the particle more than 1μm concentration in the air, there has an infrared light-emitting diode and a photoelectric built-in the sensor, led light will be reflected when come across the dust particle ,then the sensor receive intensity of the light and the output signal, it can judge the concentration of dust according to the intensity of the output signal, the sensor can output PWM signals directly as well as using UART serial signal to output particles quantity or concentration directly. The sensor is suitable for air purifier, with the function of purifying air conditioning, fresh air system and air quality testing instrument.