Call button with frame Berker S.1 polar white, matt 24 V= Operating temperature -5 - +40 °C For installation in standard installation boxes in accordance with DIN 49073-1 IP40 (touch protection from 1mm, no water protection) Additional call button, for example to provide a control point for triggering an emergency call in a second room or at another location in the room. - with reassurance lamp - with red call button with lens - as an extension for emergency call set - central piece plug-in fastening
