| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | SCE016LD3CTB | Mallory Sonalert | Audio Indicator Piezo 6VDC 16VDC 40mA 85dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
| SCE016MD3CTB | Mallory Sonalert | Audio Indicators & Alerts CONSTANT 6-16VDC, 3KHZ, MED | |
| PNM-3546L |
| Projects Unlimited |
| Microphones 2.2kOhm x 6mm |
| SCE120XA3MP1B | Mallory Sonalert | TRANSDUCER, PIEZO, 2.9KHZ, 105DBA, 120V - More Details |
| SNP428FR | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 4-28VDC SNAP-IN, SOFT |
 | ROM-2244P-NF | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | MD9745APA-1 | Knowles | MIC COND ANALOG OMNI -41DB |
 | SCE028LD3DP3B | Mallory Sonalert | Alarm; Slow Double Pulse, 3 KHZ, 16-28 DC, 85-95 DB, 40MA, 1.69X1.41In., TERM Bl |
| SC628L | Mallory Sonalert | AUDIO PIEZO IND 6-28V PNL MNT |
 | SCE028LD3DT7B | Mallory Sonalert | Alarm; Fast Warble, 3 KHZ, 16-28 DC, 85-95 DB, 40MA, 1.69X1.41In., Term. Blk |
| SCE028MD3MG3B | Mallory Sonalert | Audio Indicator Piezo 16VDC 28VDC 40mA 75dBA 2400Hz to 3400Hz Panel Mount Quick Connect Bulk |
 | GT-0950RP3 | Soberton | 9mm Audio Magnetic Transducer, 3.2kHz, 4-6V, Through Hole |
 | WM-63PRT | Panasonic | MIC COND ANALOG OMNI -45DB |
 | SCE028SD2SP1B | Mallory Sonalert | Audio Indicator Piezo 16VDC 28VDC 40mA 65dBA 1500Hz to 2500Hz Thread Mount Quick Connect Bulk |
| SCE120MA3DL1B | Mallory Sonalert | Audio Indicator Piezo 48VAC 120VAC 40mA 75dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk |
 | POM-2740L | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | AT-101Z | Projects Unlimited | TRANSDUCER, E/M, ALARM, 2.048KHZ, 73DBA |
 | ZA120LASS1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
 | ZA120MADL1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
| FB-EM-30342-000 | Knowles | Microphones 1M, NOISE CANCELING 167MM LONG, 5.4 DIA |
