| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PFD-20A35EWQ | Mallory Sonalert | Panel Mount DC 3V 24V 10mA 28mm 25mm 3.5kHz |
 | PT-2745WQ | Mallory Sonalert | Black Piezo Alarm, 5V, 1.5mA, Panel Mount, 30mm Diameter, 90°C |
| POM-2738L-R |
| Projects Unlimited |
| Omnidirectional Electret Condenser Microphone, 2.2kR Impedance, 2V Voltage Rating |
 | AOM-6746P-R | Projects Unlimited | 1.5V 500uA PCB Mount Omnidirectional Microphone |
 | SC110HR | Mallory Sonalert | Panel Mount Piezo 30V 20mA 120V 65°C |
 | SC110M | Mallory Sonalert | Panel Mount Piezoelectric Speaker 42.85mm 120V 18mA |
 | SCH628NR | Mallory Sonalert | SCH628NR 16mA DC Panel Mount Speaker |
 | SC307NR | Mallory Sonalert | Panel Mount Piezo Alarm, 3V DC, 12mA, 65°C |
 | PT-2725FPQ | Mallory Sonalert | 12V 10mA Through Hole DC Input Transducer |
 | AT-1224-TWT-R | Projects Unlimited | Audio Transducer, 3-8V, 2.4kHz, TH |
 | ZA028MDSP1 | Mallory Sonalert | Zener Diode 28V 16V 40mA 65°C Panel Mount |
 | AST1440MAQ | Mallory Sonalert | Piezo Alarm Transducer, 5V, 2mA, Surface Mount, -30°C to 70°C |
 | SCE016XD3CTB | Mallory Sonalert | 16V DC Rated Panel Mount Speaker, 40mA, 85°C, Bulk Packaging |
 | SCH628R | Mallory Sonalert | AUDIO PIEZO IND 6-18V PNL MNT |
 | ZA028LASP1 | Mallory Sonalert | ZA028LASP1 Zener Diode 28V 40mA 65°C Panel Mount |
 | ZA028MACM1 | Mallory Sonalert | Zener Diode Single 28V 40mA 65°C Panel Mount |
 | AST1109MLTRQ | Mallory Sonalert | AUDIO PIEZO TRANSDUCER 1-20V SMD |
 | POM-3542L-R | Projects Unlimited | MIC COND ANALOG OMNI -42DB 6MM D |
 | AI-2304-TF-LW120-R | Projects Unlimited | AUDIO MAGNETIC IND 20-28V CHAS |
 | ZA028LDSP1 | Mallory Sonalert | TRANSDUCER, ALARM, 95DBA, 28V, PANEL |
