Sr. No.

Instruments

Use

1

Altimeter

Measures altitudes (used in craft)

2

Ammeter

it is used to measure electric current

3

Anemometer

Measures force and velocity of wind and directions

4

Audiometer

it is used to measure intensity of sound

5

Barograph

continous recording of atmospheric pressure

6

Barometer

measure atmospheric pressure

7

Binoculars

to view distant objects

8

Bolometer

it is used to measure heat radiations

9

Callipers

it is used to measure inner and outer diameters of bodies

10

Calorimeter

it is used to measure quantities of heat

11

Cardiogram

it is used to trace movements of heart

12

Colorimeter

it is used to compare intensity of colors

13

Cryometer

it is used to measure very low temparatures

14

Dyanamo

it converts mechanical energy into electrical energy

15

Endoscope

to examine internal parts of the body

16

Fathometer

it measures depth of the ocean

17

Fluxmeter

it measures magnetic flux

18

Galvanometer

it measures electric current

19

Hydrometer

it measures the relative density of liquids

20

Hygrometer

it is used to measure humidity

21

Hydrophone

it measures sound under water

22

Hygroscope

it shows the changes in atmospheric humidity

23

Hypsometer

 it is used to determine boiling point of liquids

24

Lactometer

it measures the relative density of milk to determine purity

25

Micrometer

it measures distances and angles

26

Ohmmeter

it is used to measure electrical resistance in ohms

27

Periscope

it is used to view objects above sea level

28

Pyrometer

it is used to measure very high temparature

29

Salinometer

it determines salinity of solutions

30

Telescope

it is used to view distant distant objects in space

31

Therometer

it is used to measure temparature

32

Voltmeter

it is used to measure voltage

33

Wattmeter

it is used to measure electric power