tecno4

Sometimes, after rains, the air feels moist. The water seems to have suspended in the air. However, in certain AC’s you click some buttons and the atmosphere brightens up. How and why does it all happen? Moisture forms up in the air, resulting in humidity. However, the humidity sensor in your AC picks it up and cleans it up for you. Isn’t that wonderful? Let’s take a look at how it does that.
A humidity sensor (or hygrometer) senses, measures and reports both moisture and air temperature. The ratio of moisture in the air to the highest amount of moisture at a particular air temperature is called relative humidity. Relative humidity becomes an important factor when looking for comfort.

In this modern landscape, are the DHT11/22 still good cheap choices for measuring humidity? The answer is NO. In this guide we go into why that is by briefly looking at how the DHT11/22 sensors work. We then provide some information on modern alternatives that should generally be used instead of the DHT11/22.