What is a magnetic sensor, Magnetic speed, Magnetic chip systems

MLX90217 Series 3.5 to 24 V 25 mA Through Hole Hall Effect Cam Sensor – TO-92-3, What is a magnetic sensor, Magnetic speed, Magnetic chip systems, Analog transducer, permanent magnet, Through Hole Hall Effect Cam Sensor

• Website URL: https://www.futureelectronics.com/p/semiconductors--analog--sensors--magnetic-hall-effect/mlx90217lua-caa-000-bu-melexis-2003565
• Country List: Bangladesh