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1. Unscrew the 2 screws at the bottom of the radiation shield.
2. Gently pull out the shield.
3. Remove carefully any dirt or insects inside the sensor casing.
Note
The radiation shield comprises different parts inserted one inside another. Two bottom parts are
closed. Do not change their order! Do not let the sensors inside get wet!
• Clean the shield with water and remove any dirt or insects.
• Install all the parts back when they are fully clean and dried.
Cleaning the UV sensor and calibration
1. For the most accurate readings, please use pure water to clean the UV sensor cover lens before
mounting, and then periodically.
2. You can also calibrate the UV sensor and adjust the UV gain factor in the Wi-Fi Setup (AP mode).
The value can be increased or decreased in 0.1 steps. For more information about UV sensor cal-
ibration, see section "UV Sensor calibration".
21 Disposal
Sort packaging into different materials for disposal. Contact the local waste disposal service
provider or environmental agency for information about appropriate waste management.
Do not dispose of electrical devices with the household waste.
In accordance with European Directive 2002/96/EC regarding waste electrical and electronic
equipment and its incorporation into national law, used electrical devices must be collected
separately and recycled in an environmentally friendly manner.
Do not dispose of batteries and rechargeable batteries with the household waste. You are leg-
ally required to return used batteries and rechargeable batteries. After they are used, the bat-
teries can be returned free of charge to our point of sale or to a nearby location (for example,
retailers or municipal collecting points).
Batteries and rechargeable batteries are marked with a symbol of a crossed-out dustbin and
the chemical symbol of the pollutant. “Cd” stands for Cadmium, “Hg” stands for mercury and
“Pb” stands for lead.
22 Warranty
The regular guarantee period is 2 years and begins on the day of purchase. To benefit from an exten-
ded voluntary guarantee period as stated on the gift box, registration on our website is required.
You can consult the full guarantee terms as well as information on extending the guarantee period and
details of our services at
www.bresser.de/warranty_terms.
