Detect flames/fire with this flame sensor from Waveshare, detecting flame wavelength from 760nm to 1100nm.

Note: Please do not use this sensor for critical home/industrial/commercial safety applications. Intended for development and learning/hobby purposes only. The sensor is used for detecting fire without any fire-protection for itself - please keep a distance from the fire to avoid damage!

• Sensitive to flame spectrum
• Features wide-range voltage comparator LM393
• Adjustable sensitivity
• Signal output indicator
• Sensor only - no cable

Specifications

• Spectrum range: 760nm ~ 1100nm
• Detection angle: 0 - 60 degree
• Power: 3.3V ~ 5.3V
• Operating temperature: -25℃ ~ 85℃
• Dimension: 27.3mm * 15.4mm
• Mounting holes size: 2.0mm

How to Use

Product Wiki: https://www.waveshare.com/wiki/Flame_Sensor

In the case of working with an MCU:

• VCC ↔ 3.3V ~ 5.3V
• GND ↔ power supply ground
• AOUT ↔ MCU.IO (analog output)
• DOUT ↔ MCU.IO (digital output)