| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | ST-04CH | Soberton | SMD Magnetic Transducer 5V 2.73kHz |
 | M2BJ-BH24E | Omron | AUDIO PIEZO IND 12-24V PNL MNT |
 |
| Murata |
| Audio Indicators & Alerts 6.00KHZ .01UF PIEZO ELEMENT |
 | ST-03BH | Soberton | Audio Magnetic Transducer, 2.73kHz, 3.6V, SMD |
 | POM-2742P-2-R | Projects Unlimited | MIC COND ANALOG OMNI -42DB 6MM D |
 | SC648DR | Mallory Sonalert | Audio Indicator 10VDC 48VDC 20mA 60dBA 1600Hz to 2200Hz Panel Mount Screw Bulk |
 | AW-30SBW | Projects Unlimited | SIREN PIEZO INDICATOR 9-28V BASE |
 | ZA028MDCT | Mallory Sonalert | Audio Indicator Piezo 16VDC/16VAC 28VDC/28VAC 40mA 85dBA 2800Hz to 3800Hz Panel Mount Bulk |
 | AST-03008MR-R | Projects Unlimited | 8 Ohm 150mW Dynamic Speaker, 20kHz, 70°C, Through Hole |
 | ZA016SDCT | Mallory Sonalert | MALLORY ZA016SDCT TRANSDUCER, ALARM, 75DBA, 16V, PANEL |
| RAB-32063-000 | Knowles | Knowles RAB-32063-000 Balanced Armature Receiver, 20 Ohm, 105dB Sensitivity |
 | SLC-100-RYG-AP-24 | Eaton | Eaton Moeller series SLC Stack light compact, Green, Yellow, Red, 24 V DC, Pulsed tone, Standard mounting |
 | ST-03BL | Soberton | Magnetic Transducer Buzzer, 2.3kHz, 3.6V, SM |
 | FG-23629-D65 | Knowles | Analog MEMS Microphone, Omni, 10kHz, 4.4kR, 1.3V |
 | PT-2038WQ | Mallory Sonalert | 24mm Round Panel Mount Transducer, 5V, 5mA, -20°C to 70°C |
 | PUM-3046L-R | Projects Unlimited | MIC COND ANALOG UNI -46DB 6MM D |
 | SC648AJR | Mallory Sonalert | Black Piezo Alarm, 20mA, 10V AC, 43mm Diameter, Panel Mount |
 | SC648HR | Mallory Sonalert | Black DC 10V 16mA Panel Mount Audio Component |
 | ZA028MACT | Mallory Sonalert | ZA028MACT Zener Diode 28V 40mA 65°C Panel Mount |
 | AWB-25R6-12 | Projects Unlimited | 12V 60mA DC Power Supply, Flush Mount, IP55, 12V |
