Ultra Sound S 220V/20
Emits sound pressure of approx. 120 dB from its front side speaker and has a range of approx. 15 meters (16.5 yards).
In a range of approx. 2 m (2.2 yards) the speaker's weak static noise can be heard. At a greater distance, however, the noise is inaudible for human ears.
For the installation manual, please visit the downloads section.