LM393 Flame Detection Sensor Module

The LM393 IR Flame Sensor Module detects infrared light emitted by flame sources and is ideal for fire detection systems, safety alarms, and robotics. Using a photodiode sensitive to flame-spectrum light (760–1100nm), it offers both 3-pin and 4-pin compatibility for flexible integration with Arduino, Raspberry Pi, and other microcontrollers.

Key Features:

• Detection Range: Up to 80 cm (depending on flame intensity)

• IR Wavelength Sensitivity: 760nm–1100nm (IR flame spectrum)

• Output: Digital (DO) and/or Analog (AO) depending on version

• Operating Voltage: 3.3V–5V

• Comparator: LM393 onboard for stable digital output

• Adjustable Sensitivity: Via onboard potentiometer

• Compatibility: Works with 3-pin or 4-pin headers

• Applications: Fire alarm systems, flame recognition robots, early warning systems, safety automation

Robust, compact, and highly responsive – ideal for use in education, DIY robotics, and smart safety applications.