| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | SC250P | Mallory Sonalert | AUDIO PIEZO IND 6-250V PNL MNT |
| ZA016LDDP3 | Mallory Sonalert | AUDIO PIEZO IND 6-16V PNL MNT | |
 |
| Knowles |
| MICROPHONE MEMS ANALOG OMNI |
| SCH628DR | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 6-28VDC MED, CLASS I DIV II |
| SC648ADR | Mallory Sonalert | TRANSDUCER, PIEZO, 1.9KHZ, 75DBA, 48V - More Details |
 | SC250D | Mallory Sonalert | AUDIO PIEZO IND 6-250V PNL MNT |
| NR-23158-000 | Knowles | Microphones 4.0 X 5.59 X 2.28MM -49 SENS, JA/JK PORT |
 | NR-25994-D63 | Knowles | Microphones 4.0 X 5.59 X 2.28MM -49 SENS, JA/JK PORT |
 | AI-4228-P-FP120 | Projects Unlimited | Audio Indicators & Alerts 110VAC 2800Hz 92dBA |
 | AT-138 | Projects Unlimited | Speakers & Transducers PZ 90dB 2800Hz 12Vpp |
| SCH105R | Mallory Sonalert | Audio Indicator Piezo 1VDC 5VDC 16mA 60dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | EM-24047-C36 | Knowles | Microphones Omni-Directional Microphone |
 | POM-2244P-C3310-2-R | Projects Unlimited | Microphones MICROPHONE -44 DB 2 VDC .5 MA 2.2 KOHM |
 | GT1515RP3H | Soberton | AUDIO MAGNETIC XDCR 1-2V TH |
 | FG-23629-G17 | Knowles | Microphones Omni-Directional Microphone |
 | GT12QP9 | Soberton | AUDIO MAGNETIC XDCR 1-2V TH |
 | SCH648R | Mallory Sonalert | Audio Indicator Piezo 10VDC 48VDC 18mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | ZA016MDFP1 | Mallory Sonalert | MALLORY ZA016MDFP1 TRANSDUCER, ALARM, 85DBA, 16V, PANEL |
 | ZA016LDFP1 | Mallory Sonalert | Audio Indicator Piezo 6VDC 16VDC 40mA 85dBA 2800Hz to 3800Hz Panel Mount Bulk |
 | ZA028MADP2 | Mallory Sonalert | MALLORY ZA028MADP2 TRANSDUCER, ALARM, 85DBA, 28V, PANEL |
