3pin Flame Sensor Module

• On-board LM393 voltage comparator chip and infrared sensing probe.
• Support 5V/3.3V voltage input.
• On-board signal output indication, output effective signal is high level, and the same time the indicator light up, output signal can directly connect with microcontroller IO.
• Signal detection sensitivity can be adjusted.
• Reserved a line voltage compare circuit (P3 is leaded out).
PCB size: 30(mm) x15(mm).