10. Eye Visibility Produces a ray of light that burns into a marked piece of card Sunshine recorder Sunshine Shows the direction the wind is coming FROM Wind vane Wind direction Air pressure is marked on graph paper by pen on a sensitive arm. Barometer Air pressure Needs to be several metres off the ground Anemometer Wind Speed Needs to be on a non splash surface Rain Gauge Precipitation Held in a Stevenson screen, which is 1m above ground, with slated sides, and painted white Thermometer (Max/Min) Temperature Any special features? What do we measure it with? What do we measure?