POWER SUPPLIES, NAMELY BATTERIES, RECTIFIERS/VOLTAGE/CURRENT REGULATORS AND TRANSFORMERS; CONTROL PANELS, NAMELY ELECTRONIC APPARATUSES ADAPTED TO ELECTRONICALLY MONITOR A PREDETERMINED ACTIVITY AND ACTIVATE A BURGLAR ALARM; SIREN SPEAKERS, AND ELECTRONIC SIREN DRIVERS-NAMELY, TONE GENERATORS AND AMPLIFIERS ADAPTED TO BE USED WITH SIRENS