
An extremely loud piezo electric buzzer with integral drive circuit & a very wide operating voltage range. Specifications Resonant frequency 3k Hz Impedance 1k Omega approx. Voltage range 3V to 24 Vdc Output at 12V103d B at 1m Size 39mm dia. 26mm high Fixing centres 50mm x slots 5 x 3mm Overall width 60mm For DC operation only. Approx 100mm leads are attached red is positive black negative.