Safe safety door system, 2nd generation, safe locking with safe guard locking, in accordance with EN 60947-5-3, for applications up to SIL CL 3 and PL e. Consists of 3 elements: 1. illuminated push button for activating the safety door, 2. push button for accessing and unlocking the safety door, 3. emergency stop button. Scope of delivery: sensor unit with push buttons (spare part).