TRANSDUCER PIEZO 2.5KHZ 90DB 28VDC; Transducer Function:Alarm; Tones:Slow Pulse; Supply Voltage Min:3V; Supply Voltage Max:28V; Operating Current Max:15mA; Sound Level SPL:90dB; Resonant Frequency:2.5kHz; Product Range:- ;RoHS Compliant: Yes