The Varioton EV 11 is a, high-volume signaling device with good directivity. The choice of material and the design allow for outdoor applications even under difficult environmental conditions.

The user may choose between 7 different signal tones, a 3-tone chime and voice transmission. The signal is set either directly on the device or externally via potential-free contacts. In the case of remote control the supply voltage is constantly applied to the device. The distance between the selector switch and an EV 11 device depends on the cross-section and quality of the control cable (see specifications).

The device comprises a power supply unit, sound generator, an amplifier and sound transducer. The housing is made of seawater-resistant aluminum. The surface is painted with weatherproof varnish. All external screws as well as the loudspeaker bracket are made of stainless steel.

The signaling device is easy to install. It is connected by fully opening or removing the hinged cover. The pressure-chamber loudspeaker can be rotated and swiveled.