TDK Corporation
AUDIO MAGNETIC XDCR 3-6V TH. Audio Indicators & Alerts Round 16mmx14mm 2048Hz Vin=3-6V
TDK Corporation
AUDIO PIEZO TRANSDUCER 30V TH. Audio Indicators & Alerts Round 14mmx11mm 2kHz Vin=5V
PUI Audio, Inc.
SIREN PIEZO INDICATOR 9-28V BASE. Audio Indicators & Alerts SIREN, 24VDC, RED, 32 TONE, IP42