GVS KNX Push Button Sensor with Display, 3-Gang, 55mm, Module
"Weight: 0.1KG
Installation: Standard 80mm or 86mm wall box
Operation voltage: 21-30V DC, via the KNX bus
Current consumption, bus: <12mA
Power consumption, bus: <360mW
Push Button Lifespan: >20000
Connection: KNX, Via bus connection terminal
Operation: -5 °C ... 45 °C
Storage: -25 °C ... 55 °C
Transport: -25 °C ... 70 °C"