The CM47210 is a low-power, high-temperature twin-axial ceramic magnetometer from Honeywell. It is a small, accurate, and reliable 3-axis sensing element that can be used in the harshest of environments. It is hermetically sealed, has no external power source, and is designed to keep its accuracy over extended periods of time. It can measure magnetic fields in the x, y, and z axes with range of +/- 0.8 and a resolution of 0.04 mT. It is designed to work with a wide range of temperatures (-40°C to +110°C), making it ideal for industrial and automotive applications in the air, on the ground, or underwater. It has excellent linearity and repeatability and is non-volatile, meaning that the measurements will not be lost in power outages.