Physics
Zero Gauss Chamber
Double-walled, high permeability metal chamber produces a zero Gauss field within the chamber.
This double-walled, high permeability metal chamber produces a zero gauss field within the chamber. By placing the Magnetic Field Sensor probe into the chamber and pushing the “Tare” button, the sensor may be zeroed. Highly recommended for measurement of Earth’s magnetic field.
https://www.pasco.com/products/sensors/magnetic-field/em-8652#specs-panel