The new radio-controlled safety module UH 6900 of the Safemaster W series for the safety-oriented, bidirectional transmission of e-stop and control functions offers more flexibility in safeguarding hazardous areas. By implementing the latest radio technologies a high degree of availability and safety is achieved. Two safety zones can be connected wirelessly to each other over a considerable distance. The TÜV-certified system for safety applications reaching up to PL e/Cat. 4 or SIL 3 is characterized by its large range of up to 800 m. Fields of applications for example are extensive facilities in the intralogistics sector and mobile applications, such as fully automatic internal transport vehicles and driverless transport systems.