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This operating manual may not be reproduced,
duplicated or distributed without written permission
from the manufacturer.
Read the manual carefully before use.
Keep the manual for future reference.
Thermo-hygrometer
DH100
The digital thermometer and humidity meter is suita-
ble for climate measurements in your home, office,
production rooms, warehouse, laboratory,
agriculture,... With its simple operation and precise
measurement technology, the hygrometer quickly
provides precise readings of temperature, relative hu-
midity and of the ambient air.
WET - ''wet bulb'' temperature refers to the lowest
temperature that the current environment can reach
only by evaporating water.
DW - Under the condition of constant water vapor
content and air pressure in the air, the temperature at
which the air is cooled to saturation is called the dew
point temperature.
•
This product is not a toy. Keep children and
animals away.
•
If the product is damaged, stop using this pro-
duct to avoid measurement errors.
•
If the operating environment of the product
changes suddenly, the measurement results
may be inaccurate.
•
Before use, lay the product down for a time to
allow the temperature to equilibrate.
Do not store or use the instruments in direct
sunlight, hot or extremely humid environments.
•
Do not use the product for long periods of time
in an environment with humidity above 90%.
•
Do not disassemble the product to avoid mal-
function.
•
Observe correct polarity when charging the bat-
tery. Remove batteries before long-term storage
to prevent leaks.
•
Avoid violent vibration of the product while
measuring.
1.
Press and hold
the power and press the key briefly to turn off
the power.
2.
Normal temperature and humidity environment
measurement mode will be started by default.
3.
Briefly press the SEL key to switch to DW (dew
point temperature) measurement mode and
briefly press the SEL key again to switch to WET
measurement mode.
4.
Press the SEL key longer to convert between °C
and °F.
5.
The backlight of this product turns on automati-
cally when you press any key and turns off au-
tomatically after 30 minutes.
1.
Turn off the device.
2.
Use a screwdriver to remove the battery cover
screws on the back of the product.
3.
Remove the battery cover and remove the old
battery.
4.
Replace with new 1.5V X 3AAA batteries.
5.
Replace the battery cover and tighten the retai-
ning screws.
Clean the device with a damp, soft and lint-free cloth.
Make sure that no moisture gets into the housing.
Do not use sprays, solvents, alcohol-based cleaners or
abrasives, only water to moisten the cloth.
for 2 seconds to turn on
3
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