Flame Sensor Features-Flame sensor can detect flame or Fire at 760 nm wavelength, or ~ 1100 nm range of the light source, it can detect flame from a distance of 20cm, Greater the flame the detecting distance also increases.Detection angle 60 degrees, the flame spectrum particularly sensitive.Adjustable sensitivity (shown in blue digital potentiometer adjustment)Driving ability, more than 15mA,Operating Voltage 3.3V-5V

Output format: Digital switching output (0 and 1) or Analog Output.Fixed bolt hole for easy installation

Small PCB size: 3.2cm x 1.4cm.Using a wide LM393 voltage comparatorWorking:The flame sensor most sensitive to ordinary light is also a reaction, generally used as fire alarm and other purposes.A small panel output interface can be directly connected with the microcontroller IO port.The sensor and the flame should maintain a certain distance, so as not to damage the sensor.