2 Pack 90dB Active Electronic Buzzer Alarm Sounder DC 324V Clear audible alerts for alarms, equipment status, and electronic projects. These active buzzers produce a continuous beep and operate directly from a wide DC voltage range, making them simple to integrate and reliable in everyday use. Key benefits Immediate audible notification: 90 dB output delivers a loud, clear beep that is easy to hear in noisy environments. Simple installation: Active design means the buzzer generates sound when powered by DC 3 to 24 volts, so no extra driver circuit is required. Wide compatibility: Works with common lowvoltage systems and controllers, including microcontroller projects and many alarm or monitoring systems. Spacesaving design: Compact form fits into tight enclosures and panels without adding bulk. Readytouse pair: Two identical buzzers included for redundancy or multilocation alerts. Features and specifications Quantity: 2 pieces Sound level: 90 dB Type: Active electronic buzzer alarm sounder Sound mode: Continuous beep Operating voltage: DC 3 to 24 volts Function: Audible alarm and alerting device Suitability: Designed for use in lowvoltage electronics and alarm systems Practical applications Home and small business security: Add an audible alert to door sensors, intrusion alarms, or motion detectors to notify occupants or staff. DIY and maker projects: Connect directly to Arduino, Raspberry Pi, or other microcontroller outputs for audible feedback in prototypes, timers, or user interfaces. Equipment and machinery alerts: Use as a fault indicator or status alert on workshop equipment, power supplies, or control panels where a loud continuous tone is needed. Why choose this buzzer No extra components required: Active operation simplifies wiring and reduces project complexity. Versatile voltage range: Compatible with a wide variety of DC power sources and control systems. Twopiece pack: Provides flexibility for dualalert setups or spare replacement. What to expect Direct DC connection within the specified voltage range activates a continuous beep at approximately 90 dB. Check polarity and wiring in your application before powering. Typical use cases include audible warnings, status indicators, and user feedback in electronic assemblies. This 2 piece buzzer set is a practical, easytoinstall solution when a reliable audible alert is needed for lowvoltage electronics and alarm systems.