Description The high-decibel DC3-24V active piezoelectric alarm buzzer is an essential electronic alarm device designed for various safety applications. This electronic buzzer is for use in security systems, ensuring that any unauthorized access is immediately detected and signaled with a loud, continuous sound. Its wide voltage range makes it versatile for different setups, providing reliable performance in both residential and commercial environments. Features -Color:Black -Material:Plastic -Size:11.00X3.50X1.00cm/4.32X1.38X0.39in -Voltage: 3-24V Output sound pressure: 90dB Rated voltage: 12vDC Operating frequency: 3300500Hz Operating temperature: -20 ~ +80 -High decibel alarm sound: the sfm-20 b model alarm buzzer delivers a high decibel output, producing a loud alarm sound to effectively alert users -dc 3 -24 v power supply: this alarm buzzer is compatible with dc 3 -24 v power supply, making it suitable for a wide range of electronic devices and systems -Active piezoelectric design: featuring an active piezoelectric design, it ensures high sound output and stability for reliable performance -Alarm buzzers: Its wide voltage range makes it versatile for different setups, providing reliable performance in both residential and commercial environments -Easy installation: the alarm buzzer is easy to install, either by installing it in place or using adhesive for a secure fitPackage list: 2 x buzzer