Unique-Bargains
Unique-Bargains 5 Pcs DC 3-24V 85dB Buzzer Black
Pack of five DC 3-24V electronic buzzers rated at 85dB with 4000Hz tone for industrial alarm circuits
- Loud 85 dB alarm cuts through industrial noise
- DC 3-24 V range fits many control circuits
- Compact 35 x 23 x 12 mm body saves panel space
- 3 mm mounting holes allow quick screw fixing
- Five-piece pack provides spares for multiple installations
Industrial Alarm Buzzer Pack
The Unique-Bargains pack contains five wired electronic buzzers rated for DC 3-24V operation. Each unit produces an 85dB tone at 4000±500Hz while drawing only 2mA. The ABS housing and black-and-red two-wire leads simplify installation in control panels or machinery. They are suited for industrial environments that need a compact audible alert.
Installers Needing Panel-Mount Alerts
The 23mm body diameter and 3mm mounting holes suit panels with 30mm hole spacing. Builders who require a different voltage range, a louder output, or a threaded mounting style should look at other devices. The fixed 4000Hz frequency cannot be adjusted, so applications needing variable tones are not a match. This pack is not intended for high-voltage mains wiring.
Five Units Enable Multi-Point Coverage
Supplying five buzzers in one pack lets engineers fit identical alerts at several stations without sourcing separate items. The consistent 35 x 23 x 12mm footprint and 30mm mounting centres keep layout uniform across a cabinet. Having spares on hand reduces downtime if a unit fails during commissioning. No additional brackets, resistors or software are included.
Highlights
- Loud 85 dB alarm cuts through industrial noise
- DC 3-24 V range fits many control circuits
- Compact 35 x 23 x 12 mm body saves panel space
- 3 mm mounting holes allow quick screw fixing
- Five-piece pack provides spares for multiple installations
Specifications
| Brand | Unique Bargains |
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Questions about this item
What DC power supply range do I need to run the 3-24V buzzer?
The buzzer operates on any DC source between 3 V and 24 V, drawing only 2 mA at its rated voltage.
Will the 23 mm body and 30 mm mounting centres fit the panel cut-outs on my existing control board?
The unit measures 35 x 23 x 12 mm with a 3 mm mounting hole spaced 30 mm centre-to-centre, so it matches panels drilled to those dimensions.
How can I confirm the buzzer is sounding at the specified 85 dB and 4 kHz after wiring it?
Apply rated voltage and measure output with a calibrated sound-level meter at 1 m; you should read approximately 85 dB at a tone near 4000 Hz.
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