| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | POM-2740P-C33-R | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | ZA120MAFP1 | Mallory Sonalert | MALLORY ZA120MAFP1 TRANSDUCER, ALARM, 85DBA, 120V, PANEL |
| POM-2244L-C33-R |
| Projects Unlimited |
| Microphones CONDENSER 2.2 X 6mm |
 | AT-5210-TT-R | Projects Unlimited | Speakers & Transducers 18VP-P 120000PF 105DBA |
 | SC416R | Mallory Sonalert | AUDIO PIEZO IND 4-16V PNL MNT |
 | ZA120MADP3 | Mallory Sonalert | MALLORY ZA120MADP3 TRANSDUCER, ALARM, 85DBA, 120V, PANEL |
 | KPEG242 | Kingstate | KINGSTATE - KPEG242 - Transducteur, Piezo, Buzzer, Buzzer, Continue, 3 V, 16 V, 7 mA, 70 dB |
 | SCE028MD3DP2B | Mallory Sonalert | 42.85mm Diameter DC Input Panel Mount Speaker, 16-28V, -40-85°C |
 | POW-2742P-C3310-B-R | Projects Unlimited | Microphones -42DB 2VDC .5MA 2.2KOHM |
 | AT-1031-TT-R | Projects Unlimited | AUDIO MAGNETIC XDCR 1-3V TH |
 | SMI-1324-TW-5V-R | Projects Unlimited | Audio Indicators & Alerts |
 | MSO206NLR | Mallory Sonalert | AUDIO PIEZO IND 2-6V PNL MNT |
 | SCE016XD3SU2B | Mallory Sonalert | Audio Indicator Piezo 6VDC 16VDC 40mA 95dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk |
 | TOM-1545P-R | Projects Unlimited | MEMS Mic, Analog, Omni, 2kΩ, 4mm, 1.5mm, 2V |
 | BL-23497-000 | Knowles | Microphones 7.92 X 5.59 X 2.28MM -69 SENS, TOP PORT |
 | POM-3042L-R | Projects Unlimited | MIC COND ANALOG OMNI -42DB 6MM D |
 | ZA016MDFP1 | Mallory Sonalert | MALLORY ZA016MDFP1 TRANSDUCER, ALARM, 85DBA, 16V, PANEL |
 | PT-2060WQ | Mallory Sonalert | Audio Indicators & Alerts XDUCR, PIEZO, 6KHZ 90DB, FLANGE, 24X5 |
 | AT-1220-TT-2-R | Projects Unlimited | 12mm Round Audio Component, Tin Plated, Through Hole Mount, 1.5V 30mA |
 | SD1614T5-B1 | TDK | 16mm Piezo Buzzer, 2.048kHz, 5V, Through Hole |
