DHT11 Temperature and humidity sensor module KY-015

Product features Digital temperature and humidity sensorAs the temperature and humidity, whether from the physical quantity itself or in the actual peoples lives are closely related, so the temperature and humidity sensors will be a corresponding generation. The temperature and humidity sensor refers to an apparatus or apparatus capable of converting an amount of a temperature and a humidity amount into an electrical signal that can be easily processed. Temperature and humidity sensors on the market are generally measured temperature and relative humidity.Temperature: measure the physical and physical volume of objects, is the international unit system in one of the seven basic physical quantities. In the production and scientific research, many physical phenomena and chemical processes are carried out at a certain temperature, and peoples lives are closely related to him.Humidity: There is a close relationship with life before a long time ago, but it is more difficult to express it in terms of quantity. The representation of humidity is absolute humidity, relative humidity, dew point, moisture to dry gas ratio (weight or volume) and so on. Daily life is the most commonly used to show the relative humidity of the physical humidity of the air. Expressed in% RH. In the physical quantity of the relative humidity and temperature are closely related. A certain volume of closed gas, the higher the temperature the lower the relative humidity, the lower the temperature, the higher the relative humidity. Which involves complex thermal engineering knowledge.The relationship between temperature and humidity and peoples life:Such as: winter temperature of 18 to 25 , humidity of 30% to 80% summer temperature of 23 to 28 , humidity of 30% to 60%. In this range feel comfortable people accounted for more than 95%. In air-conditioned rooms at room temperature of 19 to 24 C and humidity of 40% to 50%, people will feel the most comfortable.