SW-420 Vibration Sensor Module Vibration Switch Alarm Sensor Module for Arduino - ( pack of 2 )

Scriptronics
>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.