| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
| PSR-50F08S-JQ | Mallory Sonalert | Speakers Ferrite 500±20%Hz 0.5W 91±3dBA 8Ohm Round | |
 | AT-2720-ST-R | Projects Unlimited | Speakers & Transducers PIEZO 3VP-P 1MA 2000HZ |
 | ST-01CH | Soberton | AUDIO MAGNETIC XDCR 4-6V SMD |
 | AI-4228-P-FP28 | Projects Unlimited | Audio Indicators & Alerts 12VDC 2800Hz 88dBA |
 | AI-278 | Projects Unlimited | Audio Indicators & Alerts 87 dBA 12VDC 1800Hz |
 | AI-223 | Projects Unlimited | Audio Indicators & Alerts 76dB CONT 400Hz 24DC |
 | AI-257 | Projects Unlimited | Audio Indicators & Alerts 85 dBA 12VDC 3100Hz |
 | AT-3311-TF-LW110-R | Projects Unlimited | Speakers & Transducers 5VP-P 5MA 55000PF 86DB |
| SMT-1325 | Projects Unlimited | Speakers & Transducers 80 dBA 5Vpp 4100Hz | |
| SMT-4203D | Projects Unlimited | TRANSDUCER, E/M, ALARM, 2.7KHZ, 85DBA | |
 | AT-4228-TF-LW145-R | Projects Unlimited | Speakers & Transducers 5VP-P 3MA 35000PF |
 | AI-250 | Projects Unlimited | Audio Indicators & Alerts 100 dBA 12VDC 3700Hz |
| AT-4328-P-R | Projects Unlimited | Speakers & Transducers 12VP-P 10MA 25000PF | |
| AWT-4703-R | Projects Unlimited | Speakers & Transducers 12VP-P 24 OHM 100 DBA | |
 | AI-550HS | Projects Unlimited | Audio Indicators & Alerts PZ 95dB 2900Hz 12VDC |
| CDMG15008-03 | CUI | SPEAKER 8OHM 300MW TOP PORT 91DB | |
 | SMI-158 | Projects Unlimited | Audio Indicators & Alerts EM 90dB 2400Hz 5VDC |
| SMI-158-2 | Projects Unlimited | Audio Indicators & Alerts EM 88Db 2400Hz 5VDC | |
 | SMT-05 | Projects Unlimited | Speakers & Transducers 5VDC XDUCER 2700Hz |
| AI-380HFP | Projects Unlimited | Audio Indicators & Alerts 12VDC 2900Hz 107dBA |