Tip: After installation of the handle close the Fixed and press the locking button.
The alarm is now set. Then the magnet using the supplied sub-building blocks on the level of the signal lamp on
Bring window handle. Once the confirmation is triggered, the magnet is in place and can be glued (purposely did not want him screws in the plastic frame = apartment, a drop of superglue secured the magnets as well). - Deposit Entrieglungsschlüssel as far away from the window, otherwise the whole bit counterproductive :-))
Handle and screws are well made - give a greater sense of security.
Batteries first purchase already for 12 months without problems in operation.
One point deduction for the fact that the handle has to be removed for battery replacement.
