Abstract: The invention concerns transmitters and a portable receiver-buzzer with programmable triggering, hand-, voice-/sound- and pulse-operated, for remotely warning one or several persons. The inventive device consists of a receiver-buzzer case (16), a presence-detecting (23), telephone jack (30), entrance door (36), central transmitter housing (13) transmitting a coded signal to the reciever (20) triggering the motor-buzzer (21) and light-emitting diode (19). In the central transmitter housing (13) there are a clock (1), a voice/sound sensor (4), an alarm push-button (2), a presence detector push-button (14), a LED sector (8), two battery-controlled LED's (6 and 7), a switch button (5) for clock (1) and voice/sound sensor (4), an acknowledgement button (9), an alarm LED (2), a housing (11) for charging the receiver (20) battery, a potentiometer (10).

Abstract: A portable receiver for remotely warning one or several persons includes a receiver-buzzer that receives coded signals from a transmitter triggering the buzzer. The device, by virtue of its functions, is designed for remotely warning in case of need, emergency or danger, any person equipped with the portable receiver-buzzer.