Humidity and moisture sensors are useful devices that allow us to measure the content of water vapor in the air. Such sensors can track humidity changes, and this is one of the crucial factors in keeping the indoor space comfortable and healthy.
Humidity and moisture sensing are important for many indoor environments. These sensors can detect the humidity level of the air, which can be useful for preventing mold, keeping wooden furniture in good shape and making sure electronics work as they should.
When you are selecting a humidity/moisture sensor, you should take some of your requirements into account. The sensors come in several kinds, each with its own specific properties and use cases. Some sensors are for home use and others industrial.
Humidity and moisture sensors function by measuring the electrical resistance of a humidity-dependent material. The resistance is high in dry air and low in humid air. This change of resistance is translated to a digital value and returned over a line to a microcontroller.
Humidity/moisture sensing is widely used applications in the daily life. You will find these sensors in things like HVAC systems which control the air quality in our homes and in our farming of making sure the vegetables are getting enough, but not too much moisture, and we home appliance such as dehumidifiers and humidifiers.