Taking an out-of-line electronic thermometer as an example:
It means that this electronic thermometer has started to be able to measure body temperature.
Some electronic thermometers will be in Chinese, some will be in English.
1, construction: temperature sensing head, temperature measuring stick, display, switch button and battery cover.
2, electronic thermometer temperature measurement principle:
Electronic thermometer is the use of temperature sensors to output electrical signals, and then the current signal is converted into a liquid crystal digital display of the temperature, as well as the ability to maintain the highest value of the temperature being measured.
3, electronic thermometer is the most core components of the temperature sensing NTC temperature sensor. Sensor resolution up to ± 0.01 ℃, accuracy up to ± 0.02 ℃, response speed < 2.8 seconds, resistance annual drift rate of ≤ 0.1% (equivalent to less than 0.025 ℃).
Extended information
Electronic thermometer notes
1, when the back of the electronic thermometer position shows "□" that indicates the need to replace the battery, the battery using AG3 button battery or SR41 silver oxide battery. When replacing the battery, first open the upper battery cover.
Tightly press the lower switch guide skin and then dial out the movement about 2,5MM (dial out the movement can not be more than 3,5mm), with a small bottle screwdriver to remove the battery. Install a new battery, positive side up, inserted into the movement, carefully close the battery cover can be.
2, electronic thermometer can be cleaned by wiping with a damp cloth, such as waterproof type can be put directly into the water to clean. Can not be placed in high-pressure gas, high temperature environment, not in contact with corrosive substances. The damage caused by this is not responsible for quality assurance:
3, working temperature: 10 ° C - 40 ° C working humidity: 30% - 80% RH
4, preservation of temperature: -1 ° C - 60 ° C preservation of humidity: 10% - 80% RH
5, the service life: AG3 or SR41 button battery for about 200 hours
6, display accuracy: ± 0,1 ° C (32 ° C to 43 ° C when) or ± 0.2 ° F