APM-TEC Diameter (mm) Height (mm) Voltage (VDC) Operating voltage (VDC) Resonance Frequency (Hz) *Minimum Sound Pressure Level  (dBA) Tone Housing material Termination
APM-PB3648P 36 31 48 9 – 48 2,800 ± 500 80dB at 30cm Continuous Noryl PIN