Temperature and humidity meter, electronic thermometer

Product Specifications

Temperature measurement range: -50 ℃ to+70 ℃ (-58 ℉ to+158 ℉)
Temperature measurement accuracy: ± 1 ℃ (1.8 ℉)
Temperature resolution: 0.1 ℃ (0.2 ℉)
Temperature measurement range: 20% RH to 99% RH
Humidity measurement accuracy: ± 5% RH
Temperature resolution: 1%
Battery usage: AAA 1.5V (low power consumption)
Product dimensions:100*108*20mm
Product quality:160g
Basic functions:
1. Temperature/humidity display
2. Temperature switching display at ℃/℉
3. Z-high/Z-low temperature memory function
4. 12/24-hour clock
5. Hourly reporting function
6. Daily alarm function
6. Calendar display function

Temperature and humidity meter, electronic thermometer

Specific operation method:
1. Push open the battery door according to the direction indicated on the back of the machine, remove the battery compartment, and then reinstall the battery door. The machine is ready for use.
2. Key function: (MODE) Switch clock and alarm display mode/Set current time, alarm, 12 or 24 hour clock, date (ADJ) Adjust the value of the set item; (Memory) displays the z-high/z-low temperature humidity values in memory/the z-high/z-low temperature humidity values cleared from memory; (℃/oF) Switch temperature units to display in ℃ (Celsius) or oF (Fahrenheit); (RESET) Clear all settings/memory values and return to the initial state.
3. Press and hold (MODE) for 1 second in the initial state, and the minutes of the current time will start flashing. Press (ADJ) to adjust the minutes, and press (MODE) continuously to set "Clock", "12/24", "Month", and "Day" respectively
4. In the current clock mode, (the two points between the clock and the minute flash once per second) switch to the alarm mode (the two points between the clock and the minute do not flash). At this time, press (ADJ) to switch the "Alarm" function/"Hourly Clock" function on and off, and then press and hold (MODE) for 2 seconds to set the alarm time and activate the "Hourly Clock" function. The () symbol will appear.
5. In alarm mode, if there is no operation, it will automatically return to the current clock after one minute. At this time, press (ADJ) once to switch the calendar display. After 3 seconds, it will automatically return to the current clock. Press the MAX/MIN button to display the temperature/humidity z and then clear (CLEAR) the maximum value of z.
6. Press (MemoRY) to display the maximum and minimum temperature/humidity values of the memory. Press and hold (MemoRY) for more than 2 seconds to clear the maximum/minimum temperature values of the memory.

Notes:

When using or replacing the battery for the first time, please press RESET once (on the back of the device);
If there is any malfunction with the machine, please press RESET once;
After the battery is used up, please return it to the designated location.

Kind Reminder:Some common environmental temperature and humidity optimal ranges
Living environment: 40-70% RH
A favorable environment for disease prevention and treatment: 40-55% RH
Storage environment for books and cultural relics: 40-60% RH
Storage environment for computers and communication equipment: 45-60% RH
Cotton and wool textile storage: 40-60% RH
Dairy product storage: 50-60% RH
Candy and Dim sum storage: 50~60% RH
Vegetable and fruit storage: 50-70% RH
Grain storage: 50-70% RH
People living on Earth cannot do without appropriate temperature and humidity, and often overlook this common and extremely important issue for human health around them.
(1) Temperature is closely related to people's lives, and people are no longer seeking or creating the optimal temperature in various fields of life.
8-15 ℃ is the optimal temperature for grain storage, which can prevent the growth of pests in grains. 35-38 ℃ is the optimal temperature for bath water, as it is similar to body temperature.
40-45 ℃ is the temperature of the foot wash water before bedtime, as hot water at this temperature can promote the dilation of blood vessels in the feet and lower limbs, allowing the brain to rest and facilitating sleep.
70-80 ℃ is the optimal temperature for brewing tea leaves with boiling water. Tea brewed at this temperature can be said to have a perfect combination of color, aroma, and taste. So, what is the optimal indoor temperature for z? It is 18-20 ℃. This temperature is the average temperature in spring in northern China, hence the idiom 'warm as spring'.
When the indoor temperature is lower or higher than the room temperature, people will feel their hands and feet frozen, work efficiency will decrease, or sweat profusely, and their minds will become dizzy. One of the main contents of indoor environment decoration is to create or maintain the optimal indoor temperature by all means.
(2) Looking at the humidity in our respective households, there are many that have thermometers, while there are very few that have hygrometers hanging on the walls (in fact, there are record sheets on the market that sell temperature and humidity together). This indicates that the issue of humidity in home interior decoration seems to have not yet aroused sufficient awareness among us. In fact, the importance of appropriate humidity is no less than that of temperature compared to the owner of the living room.
Air humidity refers to the degree of humidity in the air, which can be expressed as relative humidity. Relative humidity refers to the percentage ratio of the actual water vapor density in the air to the saturated water vapor density at the same temperature. The relative humidity that makes the human body feel comfortable indoors is 40-70%. If the relative humidity is too low or too high, it can be very harmful to the human body.
Low relative humidity can also cause moisture loss from wood, leading to deformation, cracking, and damage to furniture or wooden flooring; Piano, violin and other instruments that require high humidity cannot be used normally; Cultural relics, archives, and books are becoming brittle and deformed. Excessive relative humidity can cause mold growth on indoor furniture, clothing, carpets, and other fabrics, rust on iron, and short circuits in electronic devices; Carpets and wallpapers generate static electricity, which can be irritating to the human body and even trigger fires