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[760 TO 1100NM DETECTION] Designed to detect flame and infrared light in the 760 to 1100nm range this module responds accurately to the flame spectrum and can sense a lighter flame up to 80cm away. [DUAL OUTPUT SIGNALS] With DO digital switching output and AO analog voltage output this flame detection sensor supports simple flame alarm triggering or higher accuracy signal reading through AD conversion. [3.3V TO 5V COMPATIBILITY] Working on 3.3V to 5V power supply this IR flame sensor module connects directly to microcontroller IO ports and suits robotics projects alarm builds and learning tasks. [ADJUSTABLE SENSITIVITY] A built in blue precision potentiometer allows easy threshold tuning to match different environments helping reduce unwanted triggering from sunlight or other infrared light sources. [LM393 AND 60 DEGREE ANGLE] Featuring an LM393 comparator strong drive output above 15mA and about 60 degree detection angle this compact 4.5cm module includes mounting holes and comes in a 5PCS pack.