Abstract: The invention pertains to an electric apparatus with a sensor detection system for detecting the presence and/or movement of human beings within a predetermined proximity of the electric apparatus, the sensor detection system generating an electric output signal for controlling the electric apparatus. The sensor detection system comprises at least two sensors wherein a first sensor is designed for monitoring gross parameters of presence and/or movement and wherein a second sensor is designed for monitoring precise parameters of presence and/or movement. The second sensor is electrically post-connected to the first sensor such that the second sensor is activated depending on a first sensor signal of the first sensor upon gross detection of presence and/or movement by the first sensor, and generating a second sensor signal upon precise detection of presence and/or movement, the second sensor signal constituting the output signal of the sensor detection system.

Abstract: A heating ventilating air condition system, comprising an adjustable air vent, configured to control the rate of air flow rate through the vent, an actuator, configured to control the adjustable air vent, and an ambient energy harvester, configured to supply energy to the actuator, wherein the energy required for operating the actuator is provided by the ambiance.

Abstract: A control arrangement is provided with: a transmitting device (10) and a receiving device (20). The receiving device (20) has a receive unit (5), a control device (6), and an energy consumer (7) and the transmitting device (10) has an energy converter (2), which converts primary energy into electrical energy, and a supplying device (12, 13; 18), which supplies the primary energy to the energy converter, and a transmit unit (3). The converted energy is provided for operating the transmit unit, which transmits information to the receiving device, and wherein the supplying device can be activated by means of a key device (11) and the receiving device (5) is connected to the control device (6) and the energy load (7), such that the control device (6) controls the energy consumption of the energy load (7) based on the reception of the information.