1. using the NTC thermistor sensor , good sensitivity
2. the comparator output signal clean waveform is good , driving ability, than 15mA.
3. adjust the temperature distribution bit detection threshold
4. Working voltage 3.3V-5V
5. the output format : Digital switching output (0 and 1)
6. with bolt holes for easy installation
7. a small board PCB size : 3.2cm x 1.4cm
8. using a wide voltage LM393 comparator