Clinical Thermometer-:This thermometer is used in homes.It is basically used to measure the temperature of humans.A clinical thermometer has a temperature range of only 35ºC to 42°C.

Laboratory Thermometer-:This thermometer is used to measure  all the things except the temperature of human body.It is a complex device.A laboratory thermomer has the range of -10ºC to 110ºC. 

(i) The temperature range of clinical thermometers is from 35°C to 42°C while that of laboratory thermometer is from −10°C to 110°C.
(ii) Clinical thermometer is used to measure the temperature of a human body.
However, laboratory thermometer cannot be used to measure the temperature of a human body.
(iii) The least count of both the thermometers differs.
(iv) Unlike clinical thermometer that can be tilted, laboratory thermometer is kept upright while reading the temperature values.
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