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Levenhuk Wezzer Air PRO DM10 Air Quality Monitor
Getting started
Before using the device for the first time, place it outdoors for 2 hours for ventilation. Open the battery compartment cover (6) and insert
2 batteries according to the correct polarity. Close the cover. Press (3) for 5 seconds, and the 180 seconds countdown will start. After that
the device will be ready for calibration.
Calibration
Place the device outdoors for ventilation. Press (3) twice to start the calibration. When the calibration is completed, the alarm will sound.
Using
Get to the testing location, and the result will be displayed in 3–5 minutes. When the testing is over, press (3) for 5 seconds to turn the device
off.
Acoustic and light alerts
The air quality indicator LED lights up red, yellow, and green to represent poor, normal, and excellent air quality. The alarm will sound when
the air quality is poor.
Air quality measurement
Indication
HCHO level, mg/m
3
Air quality
Green
0… 0.09
Good air quality
Yellow
0.09… 0.3
Formaldehyde level exceeds the standard, ventilation is
recommended
Red
>0.3
Formaldehyde level is seriously exceeding the
standard, the alarm will beep five times
Specifications
Detection range
0.000… 2.888mg/m
3
(Formaldehyde)
0.000… 9.999 mg/m
3
(TVOC)
Detection principle
Semiconductor gas sensors
Power supply
2 AA batteries
The manufacturer reserves the right to make changes to the product range and specifications without prior notice.
Care and maintenance
Take the necessary precautions when using the device with children or others who have not read or who do not fully understand these
instructions. Make sure that the air flow channels at the back of the device are not blocked or covered. Do not try to disassemble the device
on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device
from sudden impact and excessive mechanical force. Store the device in a dry cool place. Only use accessories and spare parts for this
device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts!
If a part of the device or battery is swallowed, seek medical attention immediately.
Children should use the device under adult supervision
only.
Battery safety instructions
Always purchase the correct size and grade of battery most suitable for the intended use. Always replace the whole set of batteries at one
time; taking care not to mix old and new ones, or batteries of different types. Clean the battery contacts and also those of the device prior
to battery installation. Make sure the batteries are installed correctly with regard to polarity (+ and –). Remove batteries from equipment
that is not to be used for an extended period of time. Remove used batteries promptly. Never short-circuit batteries as this may lead to high
temperatures, leakage, or explosion. Never heat batteries in order to revive them. Do not disassemble batteries. Remember to switch off
devices after use. Keep batteries out of the reach of children, to avoid risk of ingestion, suffocation, or poisoning. Utilize used batteries as
prescribed by your country’s laws.
Levenhuk International Lifetime Warranty
All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a
lifetime warranty
against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Levenhuk
accessories are warranted to be free of defects in materials and workmanship for
six months
from the purchase date. The warranty entitles
you to the free repair or replacement of the Levenhuk product in any country where a Levenhuk office is located if all the warranty conditions
are met.
For further details, please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.