1[IP Flame Sensor Module] Can detect flames or light sources with wavelengths ranging from 760 to 1100nm. The flame test distance for lighter is 80cm, the larger the flame, the farther the test distance should be. 2[Highly Sensitive] The detection angle of this flame sensor module is about 60 degree, which is particularly sensitive to the flame spectrum, provides accurate fire source detection for various types of fires. 3[Adjustable Sensitivity] The sensitivity can be adjusted through the digital potentiometer to meet different fire detection needs. 4[Easy to Install] With a size of 50x26mm and a thickness of 19mm, designed with fixed bolt hole, this fire detection module is very convenient to install. 5[Wide Application] This fire alarm sensor module is very suitable for fire detection in homes, offices, industrial settings, and other environments. 1 x IR Flame Sensor Module