In many cities, they have air pollution so need to verify quality.
Below model is special for PM2.5 particulate dust.
It is very smart and light , of mini size , Using Laser sensor , high accurate for testing.
Product Dimension: 55*55*22mm.
with rechargeable Lithium Battery.
We are ture Manufacture located in Shenzhen City China . we would like to provide professional Service and competitive price . We also accept OEM, ODM .
and below are our some other models for your reference :
Certificates :