| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PT-1245P-PQ | Mallory Sonalert | BUZZER PIEZO 4KHZ 12.6MM PCB |
| AT-2310-T-LW100-R | Projects Unlimited | AUDIO PIEZO XDCR 1-12V CHASSIS | |
 |
| EK-23133-C36 |
| Knowles |
| MIC COND ANALOG OMNI -53DB |
 | BL-21994-000 | Knowles | MICROPHONE PIEZO ANALOG OMNI |
| PLD-35A29WQ | Mallory Sonalert | Audio Indicators & Alerts CONSTANT/SLOW PULSE 3-24VDC, 95DB, 42X16 |
 | AB1070B | Projects Unlimited | BUZZER ELEMENT PIEZO 7KHZ 10MM |
 | 7BB-35-3C | Murata | Piezo element, 7BB-35-3C, Murata |
| AT-4230-TF-LW135-R | Projects Unlimited | AUDIO PIEZO XDCR 1-30V CHASSIS |
 | PFD-27A35ERQ | Mallory Sonalert | MALLORY PFD-27A35ERQ PIEZO AUDIO, CONTINUOUS/FAST PULSE, 15mA, 95DB |
 | AT-10SI | Projects Unlimited | Speakers & Transducers EM 85dB 2600H 1.5Vpp |
 | SCE028MD3CM1B | Mallory Sonalert | Audio Indicators & Alerts CHIME 16-28VDC, 3KHZ, MED |
| SC648ANJR | Mallory Sonalert | AUDIO PIEZO IND 10-48V PNL MNT |
| PB-1221PQ | Mallory Sonalert | Audio Indicators & Alerts XDUCR, 1.25-2.5VPP 80DB, 12X8.5MM |
 | AI-185 | Projects Unlimited | Audio Indicators & Alerts EM 85dB 2200Hz 5VDC |
| PK-16N04WA-06Q | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 4-8VDC 400HZ, 24X17X15MM |
| KPEG203 | Kingstate | Audio Indicator Piezo 3VDC 20VDC 9mA 12VDC 86dB 2900Hz to 3900Hz Through Hole Pin |
 | AT-201 | Projects Unlimited | Speakers & Transducers EM 80dB 2250H 1.5Vpp |
 | SC628FK | Mallory Sonalert | Audio Indicator Piezo 6VDC 28VDC 12mA 50dBA/62dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
| SCE028XA3DP2B | Mallory Sonalert | Audio Indicator Piezo 16VAC 28VAC 40mA 95dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk |
 | SCE028XA3SU2B | Mallory Sonalert | Audio Indicator Piezo 16VAC 28VAC 40mA 95dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk |
