| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PKB24SWH3301 | Murata | BUZZER PIEZO 12V 24MM CHASSIS |
 | AVW-15SBR-AL-24 | Projects Unlimited | SIREN PIEZO IND 18-28V BASE |
 |
| SC307NR |
| Mallory Sonalert |
| Audio Indicator Piezo 3VDC 7VDC 12mA 80dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | SC628W | Mallory Sonalert | Audio Indicator Piezo 6VDC 28VDC 16mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | AW-30SBR | Projects Unlimited | SIREN PIEZO INDICATOR 9-28V BASE |
 | 7BB-20-6L0 | Murata | MURATA 7BB-20-6L0 SOUNDER, 6.3KHZ, EXT DRIVE |
 | PB-12N32MP-05AQ | Mallory Sonalert | Piezo Transducer, 3.2kHz, 5V, 50mA, 85dB, 12mm |
 | 7BB-35-3 | Murata | MURATA 7BB-35-3 SOUNDER, 2.8KHZ, EXT DRIVE |
 | AOM-6545P-R | Projects Unlimited | MIC COND ANALOG OMNI -45DB |
 | SC628AR | Mallory Sonalert | Audio Indicator Piezo 6VDC/6VAC 28VDC/28VAC 16mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | SC628LR | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 6-28VDC 2900HZ, CUL APPRVD |
 | PUM-5250L-R | Projects Unlimited | PROJECTS UNLIMITED PUM-5250L-R MICROPHONE, UNI LEADS, 6MM |
 | AOM-4542L-R | Projects Unlimited | Microphones 2.2kOhm x 9.7mm |
 | ZA028LDSR9 | Mallory Sonalert | 22 mm panel mount, Slow Siren, 16-28 VDC |
 | SC110HPR | Mallory Sonalert | TRANSDUCER, PIEZO, 4.5KHZ, 80DBA, 120V - More Details |
 | PKM22EPPH4002-B0 | Murata | Audio Sounder Piezo 25Vp-p 3Vp-p 75dBA Pin Through Hole Bulk |
| AST7525MAQ | Mallory Sonalert | AUDIO INDICATOR, 2.7kHz, 85dB, 4.5V; Transducer Function: Buzzer; Supply Voltage |
 | POW-1644L-LWC50-B-R | Projects Unlimited | MEMS Mic Analog Omni 2.2kR 10V IP57 |
 | ZA028LAMP1 | Mallory Sonalert | Audio Indicators & Alerts 22MM, 16-28VAC/DC, ROHS, STK |
 | SC110DJR | Mallory Sonalert | MALLORY SC110DJR TRANSDUCER, PIEZO, 1.9KHZ, 75DBA, 120V |
