Ecowitt WH43 Indoor PM2.5 Air Quality Sensor for Indoor use

Good little unit

It was very easy to set up on my HP 2551 Ecowitt unit. As an asthma sufferer, I now have two of these to keep an eye on the air quality in the house. I know I have the air quality report from the Met Office and the government web site, but that doesn’t cover the inside of my house! The 2551 had so many channels for temperature, humidity, air quality, lightning, soil moisture and air quality that I can have a good idea of the state of my home.