This module feature Hall sensing that accurately detects subtle magnetic field changes, ideal for complex environments. Its output varies with magnetic polarity, indicated by LED lights. Made with premium PCB materials, it excellent temperature stability and operates reliably within 3.3V 40V. The low noise circuitry ensuring precise without excessive external filtering. Standardized pins allows quick solder or breadboard integration. Includes a 3.3V for stable power supply to sensors and components. Unlike mechanical switches, it eliminates wear with contactless magnetic . Superior sensitivity for speed/position , perfect for door/window sensors or industrial automation. Suitable for polarity , speed measurement, and position sensing. Requires initial setup for optimal calibration.