The Accutemp AT0E-3654-2 Piezo Electric Alarm AC is an electrical signaling component designed to produce sound when supplied with the appropriate AC power signal. Its piezoelectric mechanism converts electrical energy into sound vibrations, allowing it to deliver an audible notification in compatible equipment. This alarm supports operator awareness by making alerts easier to recogni... https://partsfe.ca/at0e-3654-2-piezo-electric-alarm-ac/2-AT0E-3654-2.html