Brief introduction â—‡ Handheld temperature and humidity dew point tester, dual LCD display, can display temperature and humidity at the same time, and can switch the main display is temperature or humidity Measurement (at a certain time in the past, and the time is optional)
â—‡ OC and OF measurement unit conversion function â—‡ Automatic shutdown function (shutdown time can be set)
Performance and characteristics:
â—‡ Double LCD display, which can display temperature and humidity at the same time, and can switch the main display to be temperature or humidity â—‡ Minimum / Maximum measurement (in a certain period of time in the past, and the time is optional)
â—‡ Celsius and Fahrenheit temperature unit conversion function â—‡ Automatic shutdown function (the shutdown time can be set)
Technical parameters: (at 23 ℃ ± 5 ℃, less than 75% humidity)
Display 3 digits, dual LCD display, 999 words automatic shutdown time between 0 and 59 minutes Measuring speed about 2 measured values ​​/ sec Humidity measurement 1% -99% relative humidity (RH)
Resolution 0.1% RH
Accuracy ± 3% RH (25 ℃, 30 ... 99% RH)
± 5% RH (25 ℃, 1 ... 30% RH)
Response time 45% RH… 95% RH≤1 minute
95% RH… 45% RH≤3 minutes Temperature measurement -20 ℃… 60 ℃ / -4 ℉… 140 ℉
Resolution 0.1 ℃ / 0.1 ℉
Accuracy ± 0.8 ℃ / ± 1.5 ℉
Response time 10 ℃ / 2s
Operating temperature 0 ℃… 60 ℃, <95% RH
Storage environmentï¼10 ℃… 60 ℃, <80% (take out the battery)
The operating environment allows the altitude to be less than 2000m
Protection class IP40
Instrument power supply 9V, IEC6LR61
Battery life is about 200 hours, size 200 × 44 × 40mm
Weight 160g
basic configuration:
â—‡ 1 digital temperature and humidity meter â—‡ 1 9V battery, IEC6LR61
â—‡ One carrying case â—‡ One copy of the manual in Chinese and English
Relative humidity concept:
Relative humidity refers to the percentage of the amount of water vapor (absolute humidity) actually contained in the air and the amount of saturated water vapor (saturated humidity) at the current temperature.
It represents the degree of saturated water vapor at a certain temperature when the water vapor in the air is away from that temperature. The greater the relative humidity, the more humid the air, otherwise, the drier.
Therefore, relative humidity indicates the degree of dry and wet air. In the management of warehouse temperature and humidity, check the humidity of the warehouse, mainly to observe the relative humidity.
The relationship between absolute humidity, saturated humidity and relative humidity is as follows:
Relative humidity = absolute humidity / saturated humidity × 100%
When the temperature is constant, the greater the absolute humidity of the air, the higher the relative humidity; the smaller the absolute humidity, the lower the relative humidity.
When the water vapor content in the air is constant, the higher the temperature, the lower the relative humidity; the lower the temperature, the higher the relative humidity.
Electric Nose Hair Trimmer,2 In 1 Eyebrow Hair Trimmer,Protable Nose Hair Trimmer,3 In One Trimming Hair
ZHEJIANG SHENGFA ELECTRIC APPLIAMNCES CO.,LTD , https://www.shengfa-appliance.com