Digital hygrometer is Physical analysis instrument for measuring gas humidity. Humidity represents the water vapor content in the gas, and there are two ways of expressing it: absolute humidity and relative humidity. Absolute humidity refers to the absolute content of water vapor in a gas, and the most commonly used unit is g/m^3. At a certain temperature and pressure, the water vapor content in a unit volume has a certain limit, which is called the saturated water vapor content. Relative humidity refers to the ratio of the absolute content of water vapor in the gas to the saturated water vapor content in the same volume of gas at the same temperature and pressure, and the commonly used symbol is %R.H.. Hygrometers are used in a wide range of applications. For example, in ultra-pure metal smelting, textile processing, papermaking, printing and dyeing, as well as food storage and meteorological measurement, hygrometers are often used to measure or control the humidity of air or industrial process gases.

Digital Temperature Humidity Meter Thermometer High Precision Measurement Hygrothermograph Handle Type Hygrometer