2pcs Black Waterproof Active Electronic Buzzer – Reliable, Compact, and Easy to Install • Integrated electronic sounder designed for dependable audible alerts in compact spaces • Small form factor with a 26mm diameter and 16mm thickness for easy installation in tight areas • Operates on DC power supply from 3V to 24V, offering versatile compatibility with a wide range of devices and systems • Produces a continuous decibel alarm sound up to 85dB, ensuring alerts are clearly heard in noisy environments • Durable plastic shell made from quality ABS material, offering environmental protection, flame resistance, antiaging properties, and resistance to wear for long service life • Waterproof construction for reliable performance in outdoor or moistureprone applications • Simple installation with two mounting holes for secure screw fastening and 2wire pigtails for quick connection Ideal applications include: Security systems requiring loud, reliable alerts Industrial machinery or equipment needing operational or safety alarms Automotive or marine projects for signaling or warning purposes This buzzer is built to withstand tough conditions while delivering clear, continuous sound output, making it a dependable choice for both professional and DIY installations.