1. Digital thermometers provide faster results. Digital thermometers provide fast results as opposed to mercury thermometers whose readings are slower to realize because you have to wait for the mercury to heat and then slowly rise to display the temperature.
Can you still buy a mercury thermometer?
While mercury thermometers can measure temperature within one degree Celsius, digital thermometers can be as accurate as 0.001 degrees C a difference of four orders of magnitude in accuracy. This changeover wont be a big deal for the average person In fact, you cant buy [mercury thermometers] anymore, Strouse said.
Why did they stop using mercury in thermometers?
The reason: Mercury released into the environment from a broken thermometer is highly poisonous. Pure mercury and its compounds can cause neurological problems and other ailments in people exposed to them. Federal and state authorities have lobbied since 2002 for bans on medical mercury thermometers.