KT907 indoor and outdoor thermometer basic functions

indoor/outdoor temperature and indoor humidity display time display temperature switching display indoor/outdoor high and low temperature memory function, and display the recorded time at the same time set outdoor temperature high and low temperature alarm time display12/24 hour clock daily alarm clock function comfort display

temperature measurement range: indoor temperature:-10 ℃ ~ 50 ℃(+14 ℃ ~ +122 ℃) outdoor Temperature:-50 ℃ ~ 90 ℃(-58 ℃ ~ +194 ℃) humidity measurement range: 10%RH to 99%RH body size: 145 × 80 × 24 mm battery: 1.5V(AAA)× 1

                                             common sense of life

after measurement, experts believe that the indoor humidity is as follows:

room Environment: 40 ~ 70% RH

favorable disease prevention and treatment environment: 40~55%RH

storage environment of books and cultural relics: 40 ~ 60% RH

computer and Communication equipment storage environment: 45 ~ 60% RH

cotton and wool textile storage: 40 ~ 60% RH

dairy products storage: 50 ~ 60% RH

candy and snack storage: 50 ~ 60% RH

vegetables and fruits storage: 50 ~ 70% RH

grain storage: 50 ~ 70% RH

people living on the earth cannot do without proper temperature and humidity, and it is often easy to ignore this common and extremely important problem for people's health.

(1) temperature and temperature are inseparable from people's life. People seek or create temperature in all fields of life all the time.

8 ~ 15℃ is the temperature of grain storage, which can prevent grain insects. 35 ~ 38℃ is the temperature of bath water, because this temperature is similar to body temperature.

40~ 45℃ is the temperature of foot washing water before going to bed, because the hot water at this temperature can promote the expansion of blood vessels in feet and lower limbs, allowing the brain to rest and contributing to sleep.

70~ 80 ℃, which is the temperature of tea boiled water. The tea made by boiling water at this temperature can be said to be full of color, fragrance and taste. So, what is the indoor temperature? It is 18 ~ 20℃. This temperature is the average temperature in spring in northern China, so there is an idiom of "warm as spring.

When the indoor temperature is lower than or higher than this room temperature, people will feel cold hands and feet, reduce work efficiency, or sweat profusely, and feel dizzy. One of the main contents of indoor environment decoration is to create or maintain indoor temperature by all means.

(2) humidity look at our families, there are many thermometers, while there are few moisture meter hanging on the wall (in fact, there are record tables selling temperature and humidity together on the market). This shows that the humidity problem in home interior decoration does not seem to have caused us enough understanding. In fact, the appropriate humidity is no less important than the temperature compared with the owner of the room.

Air humidity refers to the degree of air humidity, which can be expressed by relative humidity. Relative humidity refers to the percentage value of water vapor density actually contained in air and saturated water vapor density at the same temperature. The relative humidity that the human body feels comfortable indoors is40~70%, the relative humidity is too low or too high, which makes people uncomfortable or even harmful.