Piezo Vibration Sensor (Large with Mass)

From the shop's description

This basic piezo sensor is often used for flex, touch, vibration and shock measurements. A small AC and large voltage (up to +/-90V) is created when the film moves back and forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch. Comes with solderable crimp pins and a mass attached to the tip. This mass increases the sensitivity to motion. Simply because adding mass increases the sensor interia and therfore vibration amplitude. Increasing the vibration amplitude will increase the signal level and sensitivity Features: Flexible PVDF Piezo Polymer Film Wide dynamic range Laminated for higher voltage output 0.1" breadboard friendly leads Piezo vibration sensors detailed manual, please click here Check this instructable for using Piezo veibration sensor with arduino to measure vibration