Mediola 2 channel wireless/door/window contact FS20 TFK2 652-77 Data Sheet

• Keep batteries/rechargeable batteries out of the reach of children.
• Make sure that the polarity is correct when inserting the batteries/rechargeable batteries.
• Do not leave batteries/rechargeable batteries lying around as they could be swallowed by

children or pets. In such case seek immediate medical care.

• Leaking or damaged batteries/rechargeable batteries may cause acid burns, if they come

into contact with skin. Therefore, please make sure you use suitable protective gloves.

• Make sure that batteries/rechargeable batteries are not short-circuited or thrown into a fire.

They might explode!

• Never disassemble batteries/rechargeable batteries!
• Conventional batteries must not be recharged. They might explode!
• If the device is not used for a longer period of time (when stored, for example), remove the

inserted batteries/rechargeable batteries to prevent them from leaking and causing
damage.



The product may be powered using rechargeable batteries. However, due to
their lower voltage (rechargeable battery = 1.2V, battery = 1.5V) and lower
capacity, the period of operation and range are reduced.

Therefore, to ensure safe operation, please only use high-quality alkaline
batteries (for instance, Conrad item no. 650105, AAA batteries).