It is used to measure the temperature of human body only

It is used to measure the temperature of different objects in laboratory and factories

It has temperature range from 35°C. to 42°C.

It has temperature range from -10°C to 110°C.

It has a small constriction near the mercury bulb

Usually, it does not have any constriction

It can be tilted while taking reading

It has to be kept upright while taking the reading