What should you pay attention to when buying an electronic thermometer?

Below, in the form of questions and answers, we will discuss the essential common sense that you should know when purchasing thermometer products.

Q: What are the commonly used thermometers?

A: Mercury thermometer: Mercury thermometer is still the most commonly used thermometer. It can measure the temperature under the armpit, as well as the temperature in the mouth and rectum. It is cheap, compact and easy to operate. Because the structure of glass is relatively dense, the performance of mercury is very stable, so it has the characteristics of accurate indication and high stability.

Electronic thermometer: Commonly used electronic thermometers are electronic versions of traditional mercury thermometers. They are easy to use and take measurements in a short time. The results are available in about 1 minute, which makes them more suitable for active children. First of all, they are safe, because the shells of most electronic thermometers are engineering plastics that are not afraid of falling. If they are crushed or thrown away by babies during use, there is no need to worry about broken glass cutting people or mercury poisoning.

Q: Which one is more accurate, an electronic thermometer or a mercury thermometer?

A: Compared with traditional mercury glass thermometers, electronic thermometers are easy to read, safe and non-toxic, have a short measurement time, can remember and have a buzzer prompt, and do not contain mercury; mercury thermometers use glass shells, and once the glass breaks, the overflowing mercury will be harmful to the human body. Therefore, mercury thermometers in modern consumers' homes are slowly being replaced by electronic thermometers.

However, don't think that mercury thermometers are useless. Compared with electronic thermometers, mercury thermometers are more accurate and stable. Mercury thermometers work because the thermal expansion of mercury is proportional to the temperature. Mercury is very stable, so the stability of mercury thermometers is relatively high. The results measured with mercury thermometers are usually more accurate.

Q: What should I pay attention to when purchasing a digital thermometer?

A: Choose by age: When buying a thermometer, consumers can refer to the age of the baby. Generally, you can buy an electronic thermometer for children aged 0-3 years old, but if you want to get the baby's accurate temperature, it is recommended to buy a mercury thermometer.

Pay attention to special groups: Thermometers can measure body temperature for us, but for some special groups, they need to be more careful when purchasing thermometers. For example, when pregnant women purchase basal thermometers, it is recommended to choose electronic thermometers because they do not contain mercury and are safer.

Purchase according to needs: If consumers want to use digital, ear-type or other thermometers to measure body temperature, they should pay attention to some details. First, because the temperature test requirements are relatively strict, the thermometer's indication error is generally required to be ±0.1℃, and the accuracy of the thermometer purchased by consumers must meet this requirement; secondly, read the instructions carefully and pay attention to the key points of operation.