Low-level triggered alarm buzzer module board, compatible with DC 3.3-5V voltage range, compatible with alarm system settings, 2 units per pack.

Features: This DC 3.3-5V passive low-level triggered buzzer module boasts broad compatibility, working with both active and passive buzzers. Supporting a 3.3-5V input, it seamlessly integrates into microcontroller projects. Precisely designed with a square wave drive (2K-5K frequency), the module features built-in bolt holes for easy assembly, a compact size, and compatibility with space-constrained applications. Ideal for electronics enthusiasts, developers, and DIY projects, it provides reliable audio alerts or custom sound effects for use in robotics, security systems, or educational projects. Low-level triggering and clear sound output are crucial for user notifications or system warnings in alarm devices, IoT devices, or interactive prototypes, making this buzzer module a valuable option. Its 9012 driver chip ensures stable performance across a 3.3-5V power supply, while the passive buzzer design allows for pitch adjustment, enabling dynamic audio feedback in complex circuits. Specifications: Material: Plastic; Size: Approx. 3.2x1.3cm / 1.25x0.51 inches; Operating Voltage: DC 3.3V to 5V; Available in packs of 2 or 5; Compatible Applications: Alarm systems, smart home devices, toy sound effects; Package Contents: Pack A: 2 buzzer modules; Pack B: 5 buzzer modules. Note: Please allow 1-2cm error due to manual measurement. The image may not reflect the actual color of the product due to differences in monitors.