In the question below, five words have been given, out of which four are alike in some manner, while the fifth one is different. Choose the word which is different from the rest.
Choose the word which is different from the rest.
Thermocouple
Hygrometer
Anemometer
Seismograph
Sphygmomanometer
Correct answer is E
All except Sphygmomanometer are geographical instruments, while sphygmomanometer is a clinical instrument to measure blood pressure.