Which sensor measures the strength and direction of a magnetic field?

A magnetic field sensor is specifically designed to measure the strength and direction of a magnetic field. This type of sensor uses principles of magnetism to detect the presence and intensity of magnetic fields, which can be crucial for various applications such as navigation, electronic compass systems, and industrial automation.

Other sensors mentioned have distinct purposes: a humidity sensor measures the moisture level in the air, a pressure sensor monitors atmospheric or fluid pressure, and a temperature sensor detects temperature changes. Each of these sensors operates based on different physical principles and is used for specific environmental monitoring or control tasks, making them unsuitable for measuring magnetic fields.