|It measures altitudes and is used in aircrafts.
|It measures strength of electric current.
|It measures force and velocity of wind.
|It measures intensity of sound.
|It is used for improving imperfect sense of hearing.
|It measures atmospheric pressure.
|It is used to view distant objects.
|It converts mechanical energy into electrical energy.
|It measures the depth of the ocean.
|It measures the specific gravity of liquids.
|It measures humidity in air.
|It determines the purity of milk.
|It is used to obtain magnified view of small objects.
|It is used to view objects above sea level (used in sub-marines).
|It measures very high temperature.
|It is used for detecting the direction and range of an approaching plane by means of radio microwaves.
|It measures the intensity of earthquake shocks.
|Used to hear and analyse heart and lungs sound.
|It views distant objects in space.
|Used for the measurement of human body temperature.
|It measures the electric potential difference between two points.