With the new foot switch RF GFI/ GFSI, the engineer can efficiently avoid the well-known spaghetti syndrome on the floor. Instead of using a cable, the switch uses a very reliable 2.4 GHz wireless protocol to transfer signals to the control unit. Due to the energy-saving data transfer, battery lifetime normally exceeds one year. The new wireless standard ensures very short connecting and response times and a high availability even under rough conditions, as the classification in PL d according to EN ISO 13849-1 confirms.