High Sensitivity Vibration Sensor Module For Anti-Theft Alarm

High Sensitivity Vibration Sensor Module

Product Description

The High Sensitivity Vibration Sensor Module is a compact and responsive sensor designed to detect vibrations, shocks, impacts, and movement. It is suitable for security systems, vehicle anti-theft applications, equipment monitoring, electronic locks, and DIY automation projects.

The module uses an internal contact spring mechanism to detect vibration and provides a digital LOW-level output when movement or impact is detected. Its adjustable sensitivity allows the detection threshold to be tuned according to the application.

Adjustable Sensitivity

An onboard potentiometer allows users to adjust the vibration sensitivity. This makes it possible to configure the module for detecting light knocks or stronger impacts while helping reduce unwanted triggers caused by environmental vibrations.

Fast Response & Easy Integration

When vibration is detected, the module produces an Active LOW digital output (0V) that can be easily connected to Arduino, Raspberry Pi, relay modules, wireless transmitters, or other digital control circuits.

An onboard LED provides visual feedback whenever the sensor is triggered.

Key Features

• High-sensitivity vibration and shock detection
• Adjustable sensitivity using potentiometer
• Active LOW digital output
• Fast response to vibration and impact
• Onboard signal indicator LED
• Wide 5V–15V DC operating range
• Compatible with Arduino and Raspberry Pi
• Suitable for relay and alarm systems
• Compact and lightweight design
• Easy 3-wire connection

Technical Specifications

Feature	Specification
Product Type	Vibration / Shock Sensor Module
Operating Voltage	DC 5V – 15V
Output Type	Digital Low Level (Active LOW)
Sensitivity	Adjustable via Potentiometer
Indicator	Signal LED
Response	Instantaneous
Dimensions	Approx. 40mm × 20mm × 11mm
Connection	3-Wire: VCC, GND, Output

Working Principle

The sensor uses an internal contact spring mechanism to detect vibration or physical movement. When the sensor experiences sufficient vibration or impact, the internal contact changes state and the module generates a LOW-level output signal.

The output can be monitored by a microcontroller or used to directly trigger compatible control circuitry such as alarms, relays, or wireless transmission modules.

Output Interface

The module provides a simple 3-wire connection:

• VCC: Power supply
• GND: Ground
• OUTPUT: Digital vibration detection signal

When vibration is detected, the output becomes LOW (0V) and the onboard indicator LED lights up.

Typical Application Scenarios

Vehicle Security

Suitable for car and motorcycle anti-theft alarm systems that respond to vibration or impact.

Smart Home Security

Can be used with windows, doors, cabinets, and other protected areas to detect vibration or tampering.

Equipment Monitoring

Useful for detecting excessive vibration in machines, equipment, and mechanical systems.

Electronic Locks

Can be integrated into smart locks and security devices to trigger an alarm when unwanted movement or tampering is detected.

Applications

• Vehicle anti-theft alarms
• Motorcycle security systems
• Door and window vibration detection
• Smart home security
• Electronic locks
• Equipment monitoring
• Machine vibration detection
• Alarm systems
• Relay control
• Wireless security systems
• Arduino projects
• Raspberry Pi projects
• DIY automation
• Robotics projects

Package Includes

• 1 × High Sensitivity Vibration Sensor Module

Product Disclaimer

Product information provided on our website may not be entirely accurate as specifications can vary between manufacturers, suppliers, and production batches. Please verify the actual product specifications before using the module in critical applications.

Product images are for illustrative purposes only and may differ from the actual product in colour, component placement, dimensions, or other visual details.

This sensor is intended for general vibration detection and should not be considered a standalone safety or security system for critical applications.

Important Note

Sensitivity Adjustment

Use the onboard potentiometer to adjust the sensor’s sensitivity according to the application. Excessive sensitivity may cause unwanted triggering from surrounding vibrations.

Power Supply

The module supports 5V–15V DC. Always ensure the supplied voltage remains within the specified operating range.

Output Logic

The module uses Active LOW logic. When vibration is detected, the output changes to a LOW level.

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