The wireless and battery-free radio push buttons, switches and sensors of the Harmony XB4R/XB5R series are used in many applications in the building sector (automatic gates, etc.) and industry (conveyor systems, etc.). The radio solutions impress with advantages such as low installation costs and times, high flexibility and mobility and maximum availability. This black empty housing has a magnet on the back for easy attachment and has 1 hole. The transmitter and receiver communicate via a worldwide free frequency band of 2.4 GHz and are approved for ZigBee Green Power. The existing certifications and compliance with standards ensure that they can be used in many countries. Thanks to the Green Premium eco-label, you can receive detailed information on material content, environmental impact and circular economy that supports your sustainability goals.