Autonomous leak detection & Auto-shutoff system

Product Overview
The Autonomous gas leakage detection is an advanced safety prototype designed to prevent domestic gas disasters. While standard alarms only notify you of a leak, this system provides a two-stage response: it sounds a high-decibel alarm and physically rotates the gas regulator to the OFF position using an automated servo mechanism.

How the Safety Logic Works
1. Continuous Monitoring: The MQ Gas Sensor constantly “sniffs” the air for LPG or combustible gas.
2. Instant Detection: As soon as gas levels cross the safety limit, the Arduino Nano triggers the defense mode.
3. Audible Alert (Buzzer): A high-pitched Buzzer sounds immediately to alert everyone in the vicinity.
4. Automatic Shut-off: Simultaneously, the high-torque Servo Motor rotates the regulator knob to the “OFF” position, stopping the leak at the source.

Key Features
* Active Prevention: Physically cuts off gas supply—no human intervention required.
* Audio-Visual Warning: Features a loud Buzzer for instant emergency notification.
* High-Torque Mechanism: The servo is programmed to handle the resistance of a standard regulator knob.
* Standalone & Rechargeable: Powered by a 3.7V battery with a modern Type-C/Micro-USB charging module.
* Zero-Maintenance: Equipped with a master On/Off switch for easy storage and testing.

Technical Specifications
* Microcontroller: Arduino Nano
* Gas Sensor: MQ-3 / MQ-2 High Sensitivity Sensor
* Alarm: 5V Active Piezo Buzzer
* Shut-off Actuator: SG90 / MG995 High-Torque Servo Motor
* Power System: 3.7V Li-ion Battery with Charging Protection Module
* Charging Port: Type-C / Micro-USB

Why Buy This?
* Complete Safety Solution: It moves beyond “warning” and provides “protection.”
* Perfect for Presentations: The combination of a loud buzzer and a moving mechanical part makes it the most “interactive” project in any exhibition.
* Industrial Standard: Demonstrates the concept of “Fail-Safe” engineering used in modern smart homes.
* Ready-to-Ship: Pre-assembled, pre-coded, and fully portable