Have the triple package bought last year at Christmas time in the Bauhaus and thought to be a product of ABUS on the safe side. The whole thing is really a joke. Directly after installation began that random beeping. Time day, sometimes at night, sometimes two Pieper a row, back one day rest, then again Gepiepe. After I read here that the supplied lithium Battarie often is simply old and worn out, so I have again spent money and carried out a battery change with brand new lithium batteries in at least two of the three devices. I had to hope now finally sleep without being woken by a short beep sounds but: None. It beeps continue happily to herself and is now equal kicked me in the garbage while I'll happily hinpiepen before me ... Too bad about the money !!!
