M12 standard connectors in 4-pin version.
The only preparation required at the end of the cable is to separate the wires and cut the end cleanly (distance of 22 mm); no stripping necessary.
The plug is equipped with a cable gland with an integral cable grip.
The plug may be removed and reused, providing that a clean cut is made once more at the end of the wires.
The VarioQuick ECM 412 male socket is designed to be integrated into a sensor or a detector.