Aktronics SW-420 Vibration Sensor Module Vibration Switch Alarm Sensor Module for Arduino (Pack of 2) Electronic Components Electronic Hobby Kit

>The Vibration module based on the vibration sensor SW-420 and Comparator LM393 to detect if there is any vibration that beyond the threshold. The threshold can be adjusted by the on-board potentiometer. When this no vibration, this module output logic LOW the signal indicate LED light,And vice versa. Features: Normally closed type vibration sensor SW-420. The comparator output, signal clean, good waveform, driving ability is strong, for more than 15 mA. Has a fixed bolt hole, convenient installation. Use the LM393 wide voltage comparator. Model: SW-420 Type: Normally closed Working voltage: 3.3V to 5V Output form: Digital switch output (0 and 1) Size: 32 x 14mm / 1.26" x 0.55" Module directions for use: When the vibration switch is closed, the output terminal output low level, the green light is lit; When the product vibration, the vibration switch instantaneous disconnection, the output terminal output high level, the green light is not bright; Output can be directly connected to microcontroller, through single chip microcomputer to detect the high and low level, thus to detect whether there is a vibration environment, alarm alert.