TRANSDUCER BUZZER 2.8KHZ 85DBA 28VDC; Transducer Function:Buzzer; Tones:-; Supply Voltage Min:3V; Supply Voltage Max:28V; Operating Current Max:10mA; Sound Level SPL:85dB; Resonant Frequency:2.8kHz; Product Range:-; Colour:Black ;RoHS Compliant: Yes