| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
| SCE028XA3DP2B | Mallory Sonalert | Audio Indicator Piezo 16VAC 28VAC 40mA 95dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk | |
 | SCE028XA3SU2B | Mallory Sonalert | Audio Indicator Piezo 16VAC 28VAC 40mA 95dBA 2400Hz to 3400Hz Thread Mount Quick Connect Bulk |
| PS-521Q |
| Mallory Sonalert |
| AUDIO PIEZO INDICATOR 5-15V CHAS |
 | EK-23132-C36 | Knowles | Microphones -53 Sens, KA Port Broadband Rsp.10000 |
| ZA016MDMP1 | Mallory Sonalert | MALLORY ZA016MDMP1 TRANSDUCER, ALARM, 85DBA, 16V, PANEL |
| ZA028MASP1 | Mallory Sonalert | MALLORY ZA028MASP1 TRANSDUCER, ALARM, 85DBA, 28V, PANEL |
 | ZA120MADP2 | Mallory Sonalert | MALLORY ZA120MADP2 TRANSDUCER, ALARM, 85DBA, 120V, PANEL |
 | GA38-30775-000 | Knowles | Microphones Microphone, tubeless acoustic port on end |
 | FG-23653-D58 | Knowles | Microphones Omni-Directional Microphone |
| SC250NR | Mallory Sonalert | Audio Indicators & Alerts CONSTANT, 60-250V 2900HZ, CUL APPRVD |
 | SC110EJR | Mallory Sonalert | MALLORY SC110EJR TRANSDUCER, PIEZO, 1.9KHZ, 78DBA, 120V |
 | MR-23151-000 | Knowles | Analog MEMS Microphone, Omnidirectional, 5kHz, 1V, Waterproof |
 | SPM0406HE3H-SB | Knowles | MICROPHONE MEMS ANALOG OMNI |
| ZA028LDDP3 | Mallory Sonalert | MALLORY ZA028LDDP3 TRANSDUCER, ALARM, 95DBA, 28V, PANEL |
 | AT-24 | Projects Unlimited | Speakers & Transducers PZ 85dB 3600Hz 15Vpp |
 | AT-23 | Projects Unlimited | TRANSDUCER, E/M, ALARM, 3KHZ, 90DBA |
 | AT-33 | Projects Unlimited | TRANSDUCER, E/M, ALARM, 2.5KHZ, 83DBA |
 | ZA120MADP3 | Mallory Sonalert | MALLORY ZA120MADP3 TRANSDUCER, ALARM, 85DBA, 120V, PANEL |
 | ZA120LAFP1 | Mallory Sonalert | Audio Indicator Piezo 48VDC/48VAC 120VDC/120VAC 40mA 85dBA 2800Hz to 3800Hz Panel Mount Bulk |
 | FG-23824-C36 | Knowles | Microphones Omni-Directional Microphone |
