Abstract: An electronic communication apparatus comprising an electronic communication apparatus comprising a control unit with a digital processor electronically coupled to an infrared sensor and to a wireless near field magnetic transceiver for communication with a portable electronic device. The infrared sensor is configured for detection of infrared radiation in a selected area in the vicinity of the detector and for creating an activity signal upon detection of movement of an infrared radiation source in the area. The activity mode implies causing the transceiver to transmit a wireless data signal as a request for receiving a wireless response signal with an ID from a portable electronic device.

Abstract: An automatic safety switch apparatus is provided for interrupting power to an electrical appliance such as a cooking stove after a predetermined period of operation. The apparatus includes a current detector for sensing a threshold current level between a power source and the appliance, a timer responsive to the detector, and a relay driven by the timer for opening a circuit between the source and the appliance. The timer, which can be programmed to provide a maximum interval of time during which the appliance can be safely operated unattended, is automatically reset when the appliance is turned off.