DC 12V Active Electronic Buzzer Alarm, 90 dB, Continuous Tone, Pack of 5 Overview Reliable, easytointegrate buzzers that deliver a clear 90 dB continuous beep when powered at DC 12V. Designed for simple alarm, reminder, and status indication in electronics and DIY projects. Key Benefits Clear audible alert: 90 dB continuous tone helps ensure alerts are noticed in typical indoor environments. Easy to use: Active buzzer design generates sound with direct DC power, no external driver needed. Consistent performance: Stable output at 12V DC for dependable signaling. Compact and lightweight: Fits in tight spaces for flexible mounting in enclosures and panels. Costeffective multipack: Five pieces for multiple projects or replacements. Function and Performance Type: Active electronic buzzer alarm (selfdriven), continuous sound Operating voltage: DC 12V Sound level: 90 dB (approx.) Tone: Continuous beep Use: Audible alert, alarm, reminder, status indication Compatibility Works with 12V DC systems commonly used in hobby electronics, control panels, security modules, and automation projects. Suitable for microcontroller projects via relay or transistor switching when 12V power is available. Fits standard lowvoltage DC applications that require a continuous audio signal. Size and Material Form factor: Compact, panel or enclosurefriendly design Quantity: 5 pieces Construction: Durable electronic housing suitable for general indoor use Applications DIY electronics and prototyping: Add a clear audible indicator to project enclosures for power status or fault alerts. Security and monitoring: Use as a dooropen alarm or sensortriggered alert in 12V systems. Industrial and office equipment: Integrate as a maintenance reminder or processcomplete signal on small machines and control boxes. Installation Tips Connect to a regulated 12V DC power source observing correct polarity. For microcontroller control, switch the 12V line using a relay or appropriate transistor and diode protection as needed. Mount in an area with unobstructed sound output for audibility. What's Included 5 x DC 12V 90 dB active buzzers, continuous tone