| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | SC628AFP | Mallory Sonalert | Audio Indicator Piezo 6VDC/6VAC 28VDC/28VAC 8mA 55dBA 2400Hz to 3400Hz Panel Mount Quick Connect Bulk |
 | ZA016LDDL1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
| ZA028LDPS1 |
| Mallory Sonalert |
| Audio Indicator Piezo 16VDC 28VDC 40mA 85dBA 3400Hz to 4400Hz Panel Mount Quick Connect Bulk |
 | PNM-2751L | Projects Unlimited | Microphones 2.2kOhm x 6mm |
 | ZA016MDSU2 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
 | ZA016LDPS1 | Mallory Sonalert | Audio Indicators & Alerts SHORT PULSE TONE 85-95 dB 6-16 V |
 | ZA016MDSS1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
 | ZA016SDPS1 | Mallory Sonalert | Audio Indicator Piezo 6VDC 16VDC 40mA 65dBA 3400Hz to 4400Hz Panel Mount Quick Connect Bulk |
 | AI-550 | Projects Unlimited | Audio Indicators & Alerts PZ 90dB 2900Hz 12VDC |
 | PS1740P02 | TDK | AUDIO PIEZO TRANSDUCER 30V TH |
 | SCE028XD3MG3B | Mallory Sonalert | Audio Indicator Piezo 16VDC 28VDC 40mA 95dBA 2400Hz to 3400Hz Panel Mount Bulk |
| FB-DW-23249-000 | Knowles | Microphones IP54 NR,bent plastic boom, 2-wire no conn |
 | SCE016LD2MP1B | Mallory Sonalert | Audio Indicators & Alerts MED PULSE 6-16VDC, 2KHZ, LOUD |
 | SCE016SD3CTB | Mallory Sonalert | Audio Indicators & Alerts CONSTANT 6-16VDC, 3KHZ, SOFT |
| SC628WR | Mallory Sonalert | Audio Indicator 6VDC 28VDC 16mA 68dBA 2400Hz to 3400Hz Panel Mount Screw Bulk |
 | SMA-13 | Sonitron | Audio Buzzer 1.5VDC 24VDC 1.8mA 12VDC 75dBAdBA 2985Hz to 3015Hz |
| ZA028MASS1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
| SC648MA | Mallory Sonalert | Audio Indicator Piezo 10VDC/10VAC 48VDC/48VAC 19mA 2400Hz to 3400Hz Panel Mount Bulk |
| ZA048LASS1 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
 | FG-23652-D65 | Knowles | Analog MEMS Microphone, Omnidirectional, 10kHz, 4.4kR, 1.3V |
