Passive Buzzer Alarm Module Board for Electronic Projects DC3.3-5V Square Waves Drive Design Stable Performances

Plastic. Design for DIY projects, this 3.3-5V buzzer module supports both passive high level triggering operation and active buzzer compatibility, delivering versatilitys audios signaling solution with clear 70dB output. Features compactly design with mounting hole, drive by 9012 technology for precise square waves input 2K-5KHz without builts in oscillation. Ideal for electronics hobbyists, robotics engineers, and STEM educators requiring reliable alarm systems or programmable tone generation. Passive Buzzer Alarm Module Board for Electronic Projects DC3.3-5V Square Waves Drive Design Stable Performances. Features: Design for DIY projects, this 3.3-5V buzzer module supports both passive high level triggering operation and active buzzer compatibility, delivering versatilitys audios signaling solution with clear 70dB output. Features compactly design with mounting hole, drive by 9012 technology for precise square waves input 2K-5KHz without builts in oscillation. Ideal for electronics h