Fermax 2013 Relay for Telephone/Monitor with Additional Button
Relay to activate additional functions by pressing the extra button on the phone or monitor. This relay allows to open a second door, as well as to turn on a courtesy light or stair light to the guests.
Its small size facilitates its installation in electrical registers. It can be embedded in a standard 10x10cm box. It has an adhesive strip for fixing and can also be screwed to the wall.
