INDUSTRIAL ALARM W/ LED 95DBA 28VDC; Supply Voltage Min:20VDC; Supply Voltage Max:28VDC; Tones:Fast Pulse; Sound Level SPL:95dBA; Transducer Function:Alarm; Current Rating:40mA; Resonant Frequency:3.9kHz; Transducer Mounting:Panel ;RoHS Compliant: Yes