This IR flame sensor module detects flames and infrared light sources in the 760–1,100 nm wavelength range. With a detection angle of approximately 60° and a test range of up to 80 cm (depending on flame size), it provides both digital and analogue output for flexible integration with Arduino, Raspberry Pi, and other microcontrollers.

An onboard potentiometer lets you adjust detection sensitivity, while the LM393 comparator delivers a clean, high-drive digital output signal.

Key Features

• IR Detection – Sensitive to flame spectrum wavelengths (760–1,100 nm)
• Dual Output – Digital (D0, high/low) and analogue (A0, voltage) outputs
• Adjustable Sensitivity – Onboard potentiometer for threshold tuning
• LM393 Comparator – Clean signal with strong driving capability (15 mA+)
• Wide Voltage – Works with 3.3 V and 5 V systems
• Compact – 32 × 14 mm PCB with mounting bolt hole

Specifications

• Detection Wavelength: 760–1,100 nm
• Detection Angle: ~60°
• Detection Range: Up to 80 cm (lighter flame)
• Operating Voltage: 3.3–5 V DC
• Output: D0 (digital switch) + A0 (analogue voltage)
• PCB Size: 32 × 14 mm

Ideal For

• Fire detection and alarm projects
• Firefighting robot competitions
• Safety monitoring systems