6V - 12V Screamer Alarm (Kit)

19.95 19.95 19.95 USD

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Quantity on Hand : 1
Skill Level : Kit - Basic Soldering Required

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Powerful 9V to 12V piezo alarm. Uses 556, auto-transformer and two piezo alarm elements. Circuit will deliver 108-110dB at 1M. Uses sweep circuit so there is no need to trim the circuit to match the cavity resonant frequency. We supply a plastic box with two piezo elements (35mm diameter (1.4")) already mounted in their own resonant cavity. This is part of a commercial alarm unit but it uses our (better!) drive circuit.
(PCB: 2in x 3in)