genius (because extremely simple) access security system, windows, land etc. This system works for me has been 5 years without any oversight - power. Instead I used a loop connected to reed in series: the entry gate and the gates of the grounds. Reed are kept in "closed" by a small neodymium magnets mounted in the respective miejscach.Oddzielny loop system secures the perimeter and the roof (after which one could freely enter the house). Yes, it happened: he went to the roof of a cat and broke the loop, but it was once every 5 years! If the alarm system also includes a dog, a cat problem does not occur.
can be used for the experiments matrix ME (as below), but for practical purposes a proven system you can do separately. Current consumption - lesser, calculated in mikroamperach.
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