The Casambi push button coupler from Sunricher features 4 dry contact inputs for connecting up to 4 standard push buttons, enabling flexible wireless control via a Bluetooth mesh network with a typical indoor range of up to 50 metres. Button functions can be freely configured in the Casambi app to control individual luminaires, groups, scenes or the entire network. Housed in an IP20-rated enclosure, the device is reliable and backed by a 5-year warranty.