he 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 4-pin compatibility for flexible integration with Arduino, Raspberry Pi, and other microcontrollers.

Highlights
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 4-pin headers