| Image | Part Number | Manufacturer | Description |
|---|---|---|---|
 | PT-2207 | Soberton | AUDIO PIEZO TRANSDUCER 1-30V TH |
 | TLL-87W-24V-S | Floyd Bell | White Continuous Output Indicator, Panel Mount Case and Quick Connect Blades with Screws Termination |
 |
| ZA048SAFP1 |
| Mallory Sonalert |
| AUDIO ALERT AND INDICATOR |
 | ZA048LADP2 | Mallory Sonalert | AUDIO ALERT AND INDICATOR |
 | AI-258 | Projects Unlimited | Audio Indicators & Alerts 85 dBA 12VDC 3100Hz |
 | AI-3622-P-S-12V-R | Projects Unlimited | Audio Indicators & Alerts 12VDC 85MA 105DB 2200HZ |
 | FH-26553-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | ZA028SAMP1 | Mallory Sonalert | Audio Indicator Piezo 16VDC/16VAC 28VDC/28VAC 40mA 65dBA 3400Hz to 4400Hz Panel Mount Quick Connect Bulk |
 | FED-30048-I04 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | FH-23377-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | FK-26816-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | FK-26777-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | BK-21968-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | FFH-23605-I02 | Knowles | Speakers & Transducers 5.09 X 2.80 X 2.59MM 96 SENS, 12N PORT |
| SC250HPR | Mallory Sonalert | AC, DC Buzzer Pulse, Fast 4.5kHz Piezo 60 ~ 250V 68dB @ 60V, 61cm |
 | BK-21615-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | ED-30103-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
 | ZA048SACT | Mallory Sonalert | Audio Indicators & Alerts 22MM, 28-48VAC/DC, ROHS, STK |
| SBM616JR | Mallory Sonalert | AUDIO PIEZO INDICATOR 6-16V TH |
| BK-23134-000 | Knowles | Speakers & Transducers Balanced Armature Speaker |
