IR-detector for the detection of fire / flames Range of 760 nm to 1100 nm Adjustable contact switch with Potentiometer Operating Voltage 3.3 V - 5 V - High sensitivity IR detector, - Extremely sensitive to wave between 760-1100nm - With power supply indicator lamp and comparator output indicator lamp - AO, real-time thermister voltage signal output and high / low electric level signal output,Analog quantity output - Threshold rollover electric level output,Threshold adjusted by potentiometer Detection Angle Range: About 60 degrees Operating Voltage 3.3 V - 5 V Hole Inner Diameter: 3mm https://elecena.pl/product/17096852/ky-026-flame-sensor-module 2020-08-04 https://elecena.pl/product/17096852/ky-026-flame-sensor-module 2021-12-09