Sometimes, people must enter into the hazardous areas of running machines or systems in order to calibrate the machine or remedy a problem. The wireless enabling switch of the SAFEMASTER W series is the ideal companion for your safety in such situations. It switches off any dangerous movements in just a fraction of a second. The system consists of a lightweight, ultra-compact hand-held transmitter and a radio safety switch with safety-oriented outputs. The signal transmission via radio and/or infra-red ensures that only systems in the field of vision of the hand-held transmitter can be activated.