Model: DC103 Temperature and Humidity Meter

Dimensions: 82× 70× 20mm

Weight per unit: 81g

One piece: 200 pieces

One, Product Specifications

Temperature measurement range:

Indoor：-0℃～+50℃ (+14℉～122℉)

outdoor：-50Celsius to+70"℃" is the symbol for Celsius temperature scale.-58 degrees Celsius"Fahrenheit～+158"℉" is the symbol for Fahrenheit, a temperature scale used in the United States and some other countries.")

Humidity measurement range:20% Relative Humidity to 90% Relative Humidity

Battery Usage:1.5V (AG13)× 1

Two, Basic Function

indoorOutdoor Temperature and Indoor Humidity Display

"℃" is the symbol for Celsius temperature scale.SlashFahrenheit temperature switch display

highestLowest Temperature and Humidity Memory Function

Frost Alarm Function[-1℃～+4℃ (+30.2℉～+39.2℉)]+39.2"℉" is the symbol for Fahrenheit, a temperature scale used in the United States and some other countries."")]

Comfort Display

Comfort Range: When the indoor temperature is between20℃～25℃ (68℉～77℉) and the display will show when the indoor humidity is between 40%RH～70%RH; when the humidity range is greater than 70%RH, the display will show:Humidity range less than40%RH时显示:"";

When the temperature is greater than25℃ (77℉) or less than 20℃ (68℉) and humidity between 40%RH～70%RH, no icon is displayed.

Three, Operating Method

1. 1.Open the battery coverRemove the battery, distinguish the positive and negative poles (the positive pole is up), put the battery back into the battery and the battery cover, and the machine can be used.
2. 2.Button Function:

"[MAX/MIN]显示室内温湿度和室外温度的最大（MAX）和最小（MIN）值。）Minimum (MIN) Memory Value;

Switch temperature units to display in Celsius (℃) or Fahrenheit (℉).

[CLEAR] Clear maximum/minimum memory values;

[FREEZE ALERT] Freeze Alert Switch;

1. 3.PressPress the [FREEZE ALT] key for 2 seconds to turn on (with "）Close (No)Frost Alarm Function.
2. 4.PressPress the [MAX/MIN] key when the MAX appears on the screen, and press the [CLEAR] key once to clear the maximum value. Press the [MAX/MIN] key again when the MIN appears on the screen, and press the [CLEAR] key once to clear the minimum value.

FourthNotes

1*If the machine experiences any problems, please remove the battery for about "2Reinstall it after a second.

2*Please return the used batteries to the government-designated location after they are exhausted.

3*Any technical changes will not be notified in advance.

The 103 temperature and humidity meter has been upgraded.

DC103 Indoor and Outdoor Temperature and Humidity Meter

Basic functions:
Indoor/Outdoor Temperature, Indoor Humidity Display
Celsius/Fahrenheit temperature switch display
Indoor and outdoor maximum and minimum temperature memory function
Comfort Display

Temperature measurement range:
Indoor temperature: -10°C to 50°C (+14°F to +122°F)
Outdoor temperature: -50°C to 90°C (-58°F to +194°F)
Humidity measurement range: 10%RH～99%RH
Dimensions: 82× 70× 20mm

Life Hacks

According to experts, the optimal indoor humidity is as follows:

Room Environment: 40～70%RH

The most favorable environment for disease prevention and treatment: 40-55% RH

Library and Cultural Relics Storage Environment: 40～60%RH

Computer and communication equipment storage environment: 45～60%RH

Cotton and woolen textile storage: 40-60% RH

Dairy product storage: 50～60%RH

Candy and pastry storage: 50-60%RH

Vegetables and fruits storage: 50～70%RH

Grain storage: 50～70%RH

People live on Earth, and they cannot do without the appropriate temperature and humidity. However, they often overlook this most common and extremely important issue that affects their health.

(1) Temperature is inseparable from people's lives. People are constantly seeking or creating the best temperature in various fields of life.

8～15℃ is the ideal temperature for storing grain, as it prevents insects from breeding. 35～38℃ is the ideal temperature for bathing, as it is close to the human body temperature.

40～45℃ is the ideal temperature for footbath water before going to bed, as this temperature of hot water can cause the vessels in the feet and lower limbs to dilate, allowing the brain to rest and helping one to fall asleep.

70～80℃ is the ideal temperature for boiling water to make tea. Tea brewed at this temperature is said to have a perfect blend of color, aroma, and taste. So, what is the ideal indoor temperature? It is 18～20℃. This temperature is the average spring temperature in northern China, which is why there is the idiom "warm as spring."

When the indoor temperature is lower or higher than this optimal room temperature, people will feel cold hands and feet, work efficiency decreases, or sweat profusely, feeling dizzy. One of the main contents of indoor environment decoration is to use all methods to create or maintain the best indoor temperature.

Look at our respective homes, many of us have thermometers, but few have humidity gauges hanging on the wall (in fact, there are temperature and humidity recorders sold on the market). This indicates that the humidity issue in home interior decoration has not yet received our sufficient attention. In fact, the importance of appropriate humidity to the occupants of a room is no less than that of temperature.

Air humidity refers to the degree of humidity in the air, which can be expressed by relative humidity. Relative humidity refers to the percentage value of the actual density of water vapor in the air and the saturated density of water vapor at the same temperature. The optimal relative humidity for human comfort in indoor environments is 40～70%, and both low or high relative humidity is uncomfortable or even harmful to the body.