If we can know the temperature of the room inside and outside, then we can use these indicators to add or to reduce the clothes, so there are a lot of people doubted buying thermometer, the temperature change to get to know each and every day, but don't know which kind of thermometer is better, and I don't know what type, today we are going to share with you about the indoor thermometer which is accurate?  

A variety of thermometers have been designed and manufactured according to the purpose of use.  The basis of its design is: the use of solid, liquid, gas affected by temperature and thermal expansion and cold contraction phenomenon.  Under constant volume conditions, the pressure of a gas (or vapor) changes due to different temperatures, the effect of thermoelectric effect, the resistance changes with the change of temperature, the effect of thermal radiation, etc.  

There are mercury, alcohol, electronic, pointer and other indoor thermometers on the market.  Different thermometers take different readings at the same time and place.  First of all, mercury and alcohol thermometers (including other organic liquid thermometers) are based on the physical characteristics of the liquid itself (heat expansion and cold contraction) with the line ruler to reality temperature.  

Dongguan Manjianghong Electronics Co., Ltd.is one of the leading wholesale oem multi thermometer hygrometer humidity meter manufacturer exporter and supplier factory in China, welcome to contact us.