SW-420 Vibration Sensor Module
The SW-420 Vibration Sensor Module detects shock and vibration using a spring-type sensor. When vibration exceeds the adjustable threshold, the digital output triggers for anti-theft systems, machine monitoring, and impact detection applications.
Key Features
- Spring-type vibration sensor with digital output
- Adjustable sensitivity via onboard potentiometer
- LED indicator for detection status
- Digital output (HIGH/LOW) for easy interfacing
- Wide voltage range 3.3V-5V operation
- Compact module for easy integration
- Low power consumption for battery applications
Technical Specifications
| Parameter |
Specification |
| Model |
SW-420 |
| Sensor Type |
Spring-type vibration switch |
| Operating Voltage |
3.3V – 5V |
| Output |
Digital (HIGH/LOW) |
| Sensitivity |
Adjustable via potentiometer |
| Indicator |
Power LED + Detection LED |
| Dimensions |
20mm x 20mm |
Applications
- Anti-theft alarm systems for vehicles and property
- Machine vibration monitoring and maintenance alerts
- Impact detection for smart packaging
- Tamper detection for secure enclosures
- Earthquake/shock detection prototypes
- Interactive installations with vibration triggers
Important Notes
- Adjust sensitivity for your expected vibration level
- Spring sensor has mechanical inertia – not for high-frequency vibration
- Digital output latches until vibration stops – may need debouncing
- Not suitable for precise vibration analysis – use accelerometer instead
- Mount firmly to surface being monitored
