This flame sensor module detects fire or light sources in the 760nm–1100nm infrared spectrum, making it ideal for fire alarms, safety systems, and robotics. It offers both digital and analog outputs for flexible integration with Arduino, ESP8266, and other microcontrollers.
Key Benefits
✔ High Sensitivity – Detects flames up to 1 meter away
✔ Dual Output – Analog (intensity) + Digital (threshold trigger)
✔ Adjustable Detection – Fine-tune with onboard potentiometer
✔ Fast Response – Reacts in milliseconds
Technical Specifications
Core Specifications
Detection Range: 0.8m–1m (flame source)
Spectral Band: 760nm–1100nm (IR focus)
Operating Voltage: 3.3V–5V DC
Output Signals:
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- Analog (0–5V, varies with flame intensity)
- Digital (TTL, triggers at set threshold)
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Electrical Characteristics
Current Draw: ~15mA
Response Time: <10ms
Interface: 4-pin (VCC, GND, DO, AO)
Physical Properties
Dimensions: 30mm × 15mm × 7mm
Detection Angle: ~60°
Mounting: 2x M2 screw holes
Why Choose This Flame Sensor?
✔ Reliable Fire Detection – Ideal for safety projects
✔ Easy Calibration – Adjust sensitivity via potentiometer
✔ Low Power – Works with battery-powered systems
Common Uses:
Fire alarm systems
Robotic fire-fighting bots
Industrial safety monitors
Pro Tip:
For analog mode, use analogRead() (higher values = stronger flame).
For digital mode, adjust the potentiometer until the LED triggers when flame is detected.
Package Includes:
1 x Flame Sensor Detection Module