Digital. These thermometers are quick and accurate and can be used for taking temperatures orally, rectally and under the armpit.
Ear. These digital thermometers are inserted into the ear and can only be used to take ear temperatures. They can be more expensive than other types of thermometer.
Strip. These are placed against your forehead, and show the temperature of the skin, but not the body. They are not very accurate.
Glass. There are two types of glass thermometers; those that contain a coloured alcohol to measure the temperature, or the more old-fashioned type which contains mercury. The use of mercury glass thermometers is not recommended, as mercury can be highly poisonous.