1. Comparator chip LM393 makes module readings stable.
2. Operating voltage 3.3V-5V.
3. Fast Response Time
4. Sensitivity adjustable
5. Detects a flame or a light source of a wavelength in the range of 760nm-1100 nm.
6. Detection range: up to 100 cm.
7. Adjustable detection range.
8. Detection angle about 60 degrees, it is sensitive to the flame spectrum.