Flame Sensor Module – 4 Pin, Digital Output with Sensitivity Adjustment

The 4-Pin Flame Sensor Module detects flame sources and provides a stable digital output through its onboard LM393 comparator. It includes a potentiometer to adjust sensitivity, making it ideal for precise fire detection in various environments. This module is widely used in Arduino-based fire alarm systems, flame tracking robots, and safety automation projects.

🔧 Key Features:

• 4-pin interface (VCC, GND, DO, AO)

• Digital output via comparator (LM393)

• Adjustable sensitivity via potentiometer

• Detection angle: ~60°

• Flame detection range: 0–80 cm

• Operating voltage: 3.3V–5V