Product Overview
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 the input voltage. Simply, indicators are transducers with the driver circuit built in and only require voltage to produce sound. Piezoelectric indicators use Piezoelectric benders, electro-mechanical indicators use a diaphragm, coil and magnet base to generate sound. Applications include: Medical equipment and systems, security alarms and equipment, test equipment, bar code scanners, etc.
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