Unbranded Door handle alarm 113 dB

The operation is very easy! Simply connect the door handle alarm with a 9V battery (not included), switch on, and to a door handle or knauf hang - done! Already every movement on the door handle or at the door leads to loud alarm and indicates that someone reliable access to your room, your house or your home, etc. give. At the same time, the burglars frightened, because he feared must, by the noise, which he has caused to be discovered. This text is machine translated.