In 2002, the US National Senate imposed a national ban on mercury thermometers. Due to safety and ease of use, digital thermometers are now the norm. Digital thermometers give a closer reading than mercury (not necessarily more accurate) and are safer to use.
Digital thermometers also carry the following features:
Digital thermometers measure temperature in Celsius and Fahrenheit. They come in three kinds:
Aside from first aid requirements, thermometers can be convenient for other uses such as helping women monitor their menstrual cycles. It is important to use sanitary seals with your thermometer in order to maintain sterility.
One poorly known aspect of digital thermometers is that they can go out of calibration. They need to be checked every six months to be recalibrated for accuracy.
Noteworthy first aid thermometer products
Did you know?
Mercury thermometers still count as the single largest source of mercury poison. In the US alone, it results in 17 tons of mercury dumping per year.