The wireless and battery-free radio push buttons, switches and sensors of the Harmony XB4R/XB5R series are used in many applications in buildings (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 as well as maximum availability. The receiver requires a nominal auxiliary voltage of 24V DC and serves as an additional receiver for the Harmony Hub ZBRN, for example to control a light column wirelessly. The respective receiver is taught in using a simple key combination. The transmitter and receiver communicate via a worldwide free frequency band of 2.4 GHz and are approved for ZigBee Green Power. The possible range extends up to 100m in open field and 25m with a closed control cabinet. The existing certifications and compliance with standards ensure that it can be used in many countries. Thanks to the Green Premium ecolabel, you can obtain detailed information on material content, environmental impact and circular economy that supports your sustainability goals.