Improvements in the construction of alarm equipment.

摘要

Improvements in the construction of alarm equipment. Consists of a wave transmitter 1 and a receiver 2, the latter provided with an alarm 10, set up to be activated on the receiver losing the signal from the transmitter through the distance between sets exceeding the transmission distance "D". The invention is applicable as an alarm that gives warning that persons, animals or things that are to be protected have moved too far away; also fulfils the function of a reminder and anti-theft device. <IMAGE>