Rain gauge is an instrument used for measuring how heavy the rain, the snow or other types of precipitations are.
It measures volume of water fallen in a certain period of time, like for example how many ml of rain have precipitated in an hour.

It consist of a funnel flask which collects the precipitating water droplets, and than this water flows down into a measuring cylinder, which shows how many ml of water have been collected since the rain gauge was set up under the rain.

Thermometer is long cylindrical instrument used for measuring the temperature of the surrounding it atmosphere, and to show the reading in degrees Centigrade or Fahrenheit.

The Extension on one side contains mercury inside a metallic container. Based on the temperature mercury expands to different extents which causes it to go up or down in the tube inside the glass container, which indicates the reading of the temperature of the atmosphere.

Hygrometer is an instrument to measure the level of humidity in the air.
It shows the percentage of moisture defined by the amount of water molecules in the air.

A delicate Hair or modern digital sensors measures the amount of moist in the area, and this causes the clock hand to move and point at the correct reading of the percentage of moms in the area of the surrounding atmosphere.

Barometer is a very common instrument, which measures the pressure of the air and its changes, prediction future changes in the atmosphere, which cause such weather as rain, storm and clear skies.

Barometer measures the atmospheric pressure by the movements of liquids or metal capsules whose volume changes because of the external pressure, which causes the movement of the clock hand.

This is an instrument which looks like a small windmill, and which measures he speed of wind in km/hour.

The wind movement causes the mechanism on the top to turn like a windmill, while the sensors inside measure the amount of rotations made and use it to calculate the speed of the wind.

A very old instrument which indicates the direction in which the wind is blowing to.

the wind causes the vane to rotate and point into the direction in which the wind is blowing, and this way to indicate the direction the wind is blowing to relating to the North, South, Wesr and East.

The Stevenson screen differently from the other instruments described in this presentation isn't a measuring instrument but rather a precaution and a way to defend the delicate instruments from harsh meteorological
situations, which could damage the instruments.

The Stevenson screen is a type of a wooden box which defends the instruments inside, but at the same time allows the circulation of air inside, because of the slits in the walls, which allows instruments inside like barometers or hygrometers to function properly.