SW-420 Normally Closed Vibration Sensor Module | Adjustable Shock & Motion Alarm Sensor for Arduino, ESP32 & IoT Security Projects

KSh200.00 KSh300.00 -33%

● In stock (25 available)

SKU	AT-0234
Category	Sensors
Availability	In stock
Shipping	Countrywide delivery · Free on orders over KSh10,000.00

Description

The SW-420 Vibration Sensor Module is a sensitive and reliable shock and vibration detection module used to trigger alarms, motion detection, and security alerts. It operates based on a normally closed vibration switch that opens momentarily when a sudden vibration or movement is detected. Equipped with an LM393 comparator circuit , this module outputs a digital HIGH/LOW signal corresponding to vibration activity. It features adjustable sensitivity , LED indicators , and a simple 3-pin interface compatible with Arduino, ESP32, Raspberry Pi, and STM32 . Compact, durable, and easy to integrate, it’s ideal for security systems, motion alarms, industrial machines, and DIY automation projects .

Key Features

Detects vibration, motion, or shock with high sensitivity.
Adjustable detection threshold for various applications.
Low-power operation ideal for continuous monitoring.
Easy 3-pin interface for plug-and-play integration.
Excellent for security alarms, vibration triggers, and anti-theft systems .

Specifications

Model	SW-420 Vibration Sensor Module
Operating Voltage	3.3 V – 5 V DC
Sensor Type	Normally closed spring vibration switch
Output Type	Digital (HIGH/LOW signal)
Comparator IC	LM393 for stable digital output
Adjustable Sensitivity	Onboard potentiometer
Indicators	Power LED and output status LED
Interface Pins	VCC, GND, DO
Response Time	< 1 ms
Operating Temperature	–10 °C to +70 °C
Compatibility	Arduino, ESP32, Raspberry Pi, STM32, AVR, PIC, etc.
Mounting	Compact PCB with mounting holes for easy installation