ZCode-LR and ZCode-PR are tamper-proof, non-contact safety switches with magnetic as well as RFID technology for the use in the area of mechanical and plant engineering. This dual-channel and diverse principle once again increases safety. Activation is possible as unicode, i.e. only by a assigned actuator, or as mastercode, i.e. an actuator of the PR, LR series activates every switch of the ZCode-PR, LR series. Up to 20 ZCode-PR, LR modules can be connected in series to the ZANDER safety relays or to a ZANDER safety controller. The switching status is indicated by a LED. All the ZCode-PR, LR are dust- and water-proof (IP67) and have an additional indicator contact.