Compact, reliable audible alerts for electronic equipment and alarm systems. This 2 piece set of active piezo buzzers delivers a clear continuous beep tone over a wide DC supply range, making them easy to integrate into many devices that need a loud, lowpower notification. Key benefits Easy integration: Active piezo design contains its own driver so it only requires a DC supply (no external oscillator needed). Ideal for quick replacement or retrofit. Wide voltage compatibility: Operates from DC 3 to 24V, allowing use with common logic levels and many power sources without additional circuitry. Noticeable volume: Rated at 85 dB for reliable audible alerts in busy environments. Space saving: Small 23 x 12 mm footprint fits into compact housings and tight PCB layouts. Ready quantity: Two identical buzzers included for multipoint signaling or backup. What makes it practical Consistent continuous tone for straightforward alarm and notification purposes. Works across a wide range of equipment where a clear beep or alarm is required. Durable performance suited to repeated alerts without needing special drive circuits. Typical applications Office equipment: Replacement audible alert for computers, printers, and photocopiers to signal errors or status changes. Security and alarm systems: Use in house alarms, garage alarms, and access control panels for immediate attention. DIY and industrial electronics: Indicator for control panels, automation equipment, and prototype boards where a simple audible output is required. Specifications Quantity: 2 pieces Type: Active piezo buzzer (continuous beep tone) Supply voltage: DC 3 to 24V Sound level: 85 dB Size: 23 x 12 mm Installation tips Observe correct polarity and supply voltage when connecting to avoid damage. Mount in an open area or with a sound path to the enclosure exterior for audibility. Use one or both units depending on desired redundancy or multizone signaling. This set provides a straightforward, compact solution for adding or restoring audible alerts in a wide range of electronic and alarm applications.