Application for capacitive hand sensors, for example, as a start/stop button on machines, as acknowledgment button as well as for opening and closing of doors. Compared with mechanical switches the sensors work wear-free. Dynamically momentary hand sensors detect already the approximation of the human hand and hide interfering influences like water, ice layers or foreign bodies as far as possible. A release with one-way or working gloves is possible. The housing with protection class IP 69 K is resistant to oils and also impact and scratch resistant. High power LEDs as visual feedback signal the activation of the sensor. The green LEDs are controlled separately for signalling of machine or plant states. The sensor can be used in all cases with a à 22.5 mm hole can be installed.This text is machine translated.