Have you ever been bothered by the complexity of detecting simple collisions with an acceleration sensor? No longer will this be an issue! The collision sensor is here to simplify the process. It's omni directional, stable, and sensitive. For the detection of impacts, collisions and other vibrations, this is the perfect product for your project. This Grove Collision Sensor can detect whether any collision movement or vibration happens. It will output a low pulse signal when vibration is detected. To make the output signal more reliable and neat, we added a necessary exterior circuit to reduce the noise impact. So, normal shaking will not cause any output. The sensor has a high sensitivity, then you can use it to apply to your project, such as automatic wake-up and power-down for battery management.