Air Quality Meters PMS7003. PM2.5 Sensor Module Built-in Fan. NodeMCU The sensor module accepts 2

The sensor module accepts 2

Safe and reliable: the voltage converter has automatic protection functions such as overcurrent

This considerably increases the thermal conductivity of the motor

Fully backward-compatible 40-pin GPIO header

particle size with minimum resolution 0

Air Quality Meters PMS7003. PM2.5 Sensor Module Built-in Fan. NodeMCU The sensor module accepts 2Principle: this sensor uses the principle of La Ser scattering, i. e. the La Ser is irradiated to suspended particles in the air to create scattering, and at the same time the scattered light is collected at a certain angle to maintain the curve of the scattered light over time. The microprocessor uses an algorithm based on the MIE theories to obtain the equivalent particle size of the particles and the number of particles of different sizes per unit