Audible Signal Devices Offer Big Sound, Small Size
Sonalert II surface-mount audible signal devices come in several versions. AST100 delivers an sound pressure level (SPL) of 80 dB at 10 cm with a 5 Vpk-pk squarewave input and a resonant frequency of 4000, ±500 Hz. AST200 delivers an SPL of 87 dB