How bad judgment thermometer?

Thermometer is closely related to our daily life, so how to judge the thermometer is broken? Today let's talk about how to determine various kinds of thermometer have bad? Digital display thermometer, temperature or humidity value and a far cry from what the current temperature value released to the media, is broken. In general, the humidity value deviation will be very big, as long as the temperature is not tall, with the first. Glass rod thermometer ( Mercury, alcohol) , whether it's a thermometer of armpit or hang on the wall of the room temperature meter, your hands hold direction of cryogenic liquid at the bottom storage place, and then you will see the liquid in the slowly rising, until 37 ℃ or so, it's not bad. Additional mercury thermometer ( A place known as thermometer) Is sealed, as long as there is any breakage, will air intake, with mercury on their post fracture phenomenon. As long as the look and mercury thermometer is normal, is a good thermometer, can be at ease use. Buy a new method to identify as well.