A widely used gas sensor module for detecting smoke and flammable gases. Ideal for safety projects, leak detection, and basic air monitoring setups.

Based on the MQ-2 sensor, it responds to gases like LPG, propane, methane, hydrogen, and smoke, providing both analog and digital outputs for flexible use.

The onboard potentiometer allows you to adjust the sensitivity of the digital trigger to match your environment.

Key Features

• Detects smoke and flammable gases
• Dual output: analog + digital
• Adjustable sensitivity (potentiometer)
• Fast response time
• Easy integration with microcontrollers

Typical Uses

• Gas leak detection
• Smoke detection systems
• Safety and alarm projects
• DIY electronics