Eltako Wireless 2- or 4-way pushbutton without battery or wire, without frame FT4CH-

Wireless 2- or 4-way pushbutton for internal frame dimensions 60 x 60 mm, 15 mm high, Feller Swiss. Generates the power for wireless telegrams itself when the button is pressed, therefore there is no connecting wire and no standby loss. With rocker and double rocker. Also for cover frames from ABB Normelec and Hager.