The SW420 Vibration Sensor Module is based on SW-420 Vibration Sensor, which works on the principle that when the movement or vibration occurs, the circuit will be briefly disconnected and output low. Hence the normal state of this sensor is closed. The sensitivity of the SW420 Sensor can be controlled by an onboard potentiometer and LM393 Comparator IC. This is very useful in detecting Collisions, Burglary protection alarm systems, Vibration alert systems, etc.

To connect it with Microcontrollers like Arduino/ Raspberry Pi/NodeMcu, ESP8266, ESP32, etc. just power the device using VCC and GND pins and connect the Digital Output to any Digital I/O pin of the Microcontroller you are using.
Arduino Project with SW 420 Vibration Sensor Module
1×SW-420 Vibration Sensor Module
Due to the type of products we sell, we accept limited returns. Below are the conditions where we can accept a return request.
If you receive a product damaged during shipment, please notify us within 3 days of receiving the product, supported by proper pictures and a description. Once our support team accepts the return, we will provide a replacement or a complete refund, including the return shipping cost.
If your item looks different from what is shown in the image on our website, we will take the item back and provide a refund or replacement as per your choice.
We don’t accept returns for products damaged due to improper use. Moreover, we don’t accept returns if the ordered product is not suitable for a specific application. Please read the product specifications and datasheet carefully before placing an order. Returns are accepted only within 3 days from the date of delivery.
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