The signolux call button can be used as a portable call transmitter or - depending on how you define its signalisation on the receivers - as a doorbell pushbutton, because the way it is displayed is up to your preference.
If you use the Signolux as the main receiver, in addition to the visual indicator you can choose an alert sound from a wide range.
An LED light informs you of communication and battery status. There is also a notification for a low battery indicator.
The battery is included.
Note: signolux-devices are not compatible with lisa-devices!
Dimensions (HxWxD): L 80 x B 40 x T 16 mm
Color: bronze-metallic / transparent
Weight: 41 g (incl. battery)
Power supply: 1x 3V battery CR 2032
Battery life: approx. 18 months