barometer
A barometer measures atmospheric pressure, not humidity. A hygrometer measures humidity.
A psychrometer is typically used to measure relative humidity, which is the amount of water vapor present in the air relative to the maximum amount the air could hold at that temperature. By measuring both the dry-bulb (air temperature) and wet-bulb temperature, a psychrometer can determine the relative humidity of the air.
Relative humidity expresses a percentage of humidity in the air to the maximum amount of humidity that could be in the air. For example: when the temperature rises the air will be able to hold much more humidity so the relative humidity will drop.
Humidity can be directly measured by forced condensation either by pressurized or reduce the temperature and measure the water content directly. Alternative to direct measurement, humidity can be measure using air electro-conductivity since presence of water would increase the conductivity so it could interpret the conductivity to water content.
This is an instrument used to measure the relative humidity in the air.[Another way of determining this is to measure the dew point of the air. The temperature at which dew will form on a clean mirror that can be chilled. ]
A psychrometer is a device used to measure the relative humidity in the air. It consists of two thermometers: a wet bulb and a dry bulb. By comparing the differences in temperature readings between the two thermometers, the relative humidity can be calculated.
%
dehumidifier
A psychrometer is typically used to measure relative humidity, which is the amount of water vapor present in the air relative to the maximum amount the air could hold at that temperature. By measuring both the dry-bulb (air temperature) and wet-bulb temperature, a psychrometer can determine the relative humidity of the air.
There is no such thing as a sygrometer, but a hygrometer is a device that is used to measure the humidity of the air. It can indicate relative humidity or absolute humidity.
hygrometer used to measure density of relative humidity in air by using a sensory element such as a hair
A psychrometer is a type of hygrometer used to measure the relative humidity in the air. It consists of two thermometers, one of which is covered with a wet cloth, allowing for the comparison of wet-bulb and dry-bulb temperatures to calculate relative humidity.
Your question is a little unclear. The devices used to record temperature and relative humidity are "thermometers (temperature)." and "hygrometers (relative humidity)". Sorry if this isn't what you were looking for.
A psychrometer is used to measure the relative humidity of the air by comparing the readings of a dry bulb thermometer and a wet bulb thermometer. This information is important for various applications such as weather forecasting, agriculture, HVAC systems, and climate research.
g/m³ or mg/l
Relative humidity expresses a percentage of humidity in the air to the maximum amount of humidity that could be in the air. For example: when the temperature rises the air will be able to hold much more humidity so the relative humidity will drop.
A thermometer.
A hydrometer can be used to find the specific gravity (relative density) of a liquid by determining how much water it will displace. Various calibrations are used for different kinds of liquids.