Indicators
Audio Indicators have built-in electronic oscillators and wave shaping networks to provide siren, pulsating or continuous tone sound output when a DC or (sometimes AC) voltage is applied. The Resonant frequency is fixed at its optimum performance and only its sound output (SPL) can be varied by...
Transducers
A transducer is an electronic device that converts energy from one form to another. Common examples include microphones, loudspeakers, and pressure sensors. There are two types of transducers, piezoelectric and electro-mechanical. Piezoelectric transducers react in the same way of Piezoelectric...
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