.The MH281KSO is a RoHS-compliant SOT-23-3L magnetic sensor manufactured by Magnesensor. It is designed to detect the presence of a magnetic field and output a digital signal, allowing for simple electronic detection. It has an operating temperature range of -40 to 85°C, a maximum current rating of 100mA, a minimum operating voltage of 2.0V, a maximum operating voltage of 5.5V, and a high-sensitivity electromagnet impedance sensor that provides a detection range of up to 1mm. The MH281KSO also features a logic gate output, various logic levels, and a low power consumption. This sensor can be used for security systems, automotive sensing, and other magnetic sensing applications.