Active Piezoelectric Buzzer Alarm Module SFM27 (15 Pieces, DC 324V) This active piezoelectric buzzer module delivers a continuous tone for reliable alert and alarm signaling. Designed for versatile use, it operates across a wide voltage range from DC 3V to DC 24V, making it suitable for numerous applications in electronics, security systems, and industrial devices. Key Features Wide Operating Voltage: Supports DC 3V to DC 24V for flexible integration with different systems. Rated Voltage: 12V for performance in standard setups. Low Power Consumption: Maximum current draw of only 30mA, ensuring efficient energy usage. Continuous Sound Output: Produces a stable and clear tone for immediate attention. Quantity: Pack of 15 pieces for multiple installations or projects. Model: SFM27, proven for consistent reliability in demanding environments. Performance and Compatibility Max Voltage: DC 324V Rated Voltage: 12V Max Current: 30mA Continuous tone output suitable for varied signal needs Compact design allows easy placement in tight spaces Applications 1. Security Alarms: Effectively alerts in burglar alarm systems, ensuring audible warning to deter intrusions. 2. Industrial Equipment: Provides fault or status notifications in machinery and automated systems. 3. Electronics Projects: Ideal for DIY projects, robotics, and electronic devices requiring sound signaling. With its wide voltage support, efficient power use, and continuous tone capability, the SFM27 active piezoelectric buzzer alarm module is a practical choice for engineers, hobbyists, and system integrators who require dependable sound alerts in diverse environments.