Description：
Using the NTC thermistor sensor , good sensitivity
The comparator output signal clean waveform is good , driving ability, than 15mA.
Adjust the temperature distribution bit detection threshold
Working voltage 3.3V-5V
The output format : Digital switching output (0 and 1)
With bolt holes for easy installation
A small board PCB size : 3.2cm x 1.4cm
Using a wide voltage LM393 comparator
