1.Adjustable sensitivity (shown in blue digital potentiometer adjustment)
2.Operating Voltage 3.3V-5V
3.Output format: digital switching outputs (0 and 1)
4.With fixed bolt hole for easy installation
5.Small PCB board size: 3.2cm * 1.4cm
6 .Power indicator (red) and the digital switch output indicator (green)
7 .Using LM393 comparator chip, stable