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Sensors · Boards · Modules · Kigali
KY-003 Hall Magnetic Sensor Module is a small electronic sensor module that detects magnetic fields using the Hall Effect principle. It is widely used in Arduino, ESP32, and Raspberry Pi projects for detecting magnets, measuring speed, and counting rotations.
Sensor Chip A3144
Operating Voltage 3.3V – 24V
Output Type Digital
Detection Method Magnetic field
Logic Active LOW
Operating Temperature -40°C to 85°C
Dimensions About 18.5 × 15 mm
Applications
Motor speed measurement
RPM counters
Door magnetic detection
Wheel rotation counting
Position sensing
Automation systems
Robotics projects
