Mallory Sonalert Products, Inc.
TRANSDUCER, PIEZO, 1.9KHZ, 78DBA, 28V; Transducer Function:Alarm; Tones:Continuous; Supply Voltage Min:6V; Supply Voltage Max:28V; Operating Current Max:10mA; Sound Level SPL:78dBA; Resonant Frequency:1.9kHz; Colour:Black RoHS Compliant: No