Precise measurement by laser scattering principle alarm rate Real-time response and support for continuous acquisition The minimum resolution is 0. The patent structure, six full range of shielding, anti-jamming performance stronger The PMS5003 is a digital universal particle concentration sensor based on the principle of laser scattering. It can continuously collect and calculate the number of suspended particulates in different air volumes per unit volume, that is, the particle concentration distribution, and then convert it into mass concentration. Interface form output. The sensor can be embedded in a variety of suspended particles in the air associated with the concentration of inst entation or environmental improvement equipment, to provide timely and accurate concentration data. The direction of the inlet and outlet is optional, the scope of application is wide and the user does not need to design the air duct again. Real-time output temperature and humidity data. Working principle: The sensor uses the principle of laser scattering. It means that the laser light on the particles in the air and making the scattering, while collecting scattered light at a particular angle , resulting in scattered light intensity with time curve. Furthermore, the microprocessor uses the algorithm based on Mie (MIE) to obtain the equivalent particle size of the particles and the number of particles with different particle diameters per unit volume. The labels and cable colors on the products due to different product batches, but this not affect the use. Colour:As Shown Material:iron Package Contents: 1 * Sensor 1 * cable 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.