| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PKLCS1212E20A0-R1 | Murata | Piezo Transducer 2kHz SMD 12.5V |
 | SC110DJR | Mallory Sonalert | MALLORY SC110DJR TRANSDUCER, PIEZO, 1.9KHZ, 75DBA, 120V |
 | AST-02308MR-R | Projects Unlimited | 23mm 8 Ohm 100mW Dynamic Speaker - Top Port, 75dB |
 | POM-5246L-R | Projects Unlimited | MIC COND ANALOG OMNI -46DB |
 | POW-2242P-C3310-B-R | Projects Unlimited | Microphones -42DB 2VDC .5MA 2.2KOHM |
| SC648NDR | Mallory Sonalert | MALLORY SC648NDR TRANSDUCER, PIEZO, 1.9KHZ, 90DBA, 48VDC | |
| SC628P | Mallory Sonalert | AUDIO PIEZO IND 6-28V PNL MNT | |
| SCE120XA3CTB | Mallory Sonalert | Audio Indicators & Alerts CONSTANT 30-120V, 3KHZ, XLOUD | |
| SCE016XD3CTB | Mallory Sonalert | AUDIO PIEZO IND 6-16V PNL MNT | |
 | ZA120LAMP1 | Mallory Sonalert | TRANSDUCER, ALARM, 95DBA, 120V, PANEL |
 | SC616NJR | Mallory Sonalert | AUDIO PIEZO IND 6-16V PNL MNT |
 | AS05004PR-2-WR-R | Projects Unlimited | SPEAKER 4OHM 1.5W TOP PORT 85DB |
| AT-3425-TWT-R | Projects Unlimited | AUDIO PIEZO TRANSDUCER 3-28V TH | |
 | PKM22EPPH4001-B0 | Murata | Piezo Buzzer 4kHz 25VDC Through Hole 22mm |
 | AS07108PO-WR-R | Projects Unlimited | 8 Ohm 3W Water Resistant Dynamic Speaker |
 | SC628NJR | Mallory Sonalert | Audio Indicator Piezo 6VDC 28VDC 20mA 90dBA/103dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | PT-2728FPQ | Mallory Sonalert | Audio Indicator Piezo 3VDC 28VDC 5mA 12VDC 85dBA 2300Hz to 3300Hz Through Hole Pin Bulk |
| TOM-3050L-R | Projects Unlimited | Microphones 2.2kOhm x 4.5mm | |
 | POW-1644L-B-R | Projects Unlimited | MEMS Mic Omnidirectional Analog 2V 2.2kR IP57 |
| SMT-1324-TW-12V-R | Projects Unlimited | AUDIO MAGNETIC XDCR 8-16V SMD |
