Mallory Pfd-20A35Ewq
5kHz; Colour:Black.5KHZ, 95DB, 24VDC; Transducer Function:Alarm; Tones:Continuous, Fast Pulse; Supply Voltage Min:3V; Supply Voltage Max:24V; Operating Current Max:10mA; Sound Level SPL:95dB; Resonant Frequency:3.TRANSDUCER, PIEZO, 3.