Maurer Magnetics Mini Zero Gauss Chamber
In order to achieve precisely accurate measurements of residual magnetism it is necessary to minimize the effect of the earth's magnetic field.
Maurer Magnetics Mini-Zero-Gauss-Chamber is designed to shield the probe from not just the earth's magnetic field but also the magnetic field of your local government (rebar, steel structures, machinery, etc...)
Once the probe is zeroed you can easily measure the additive effect of your environment and deduct the value from measurements made of your parts. Please note that it is important to observe the direction of the probe and part when taking measurements and making corrections. You can also consider using a desktop Zero-Gauss-Chamber, pictured below, when measuring samples before and after demagnetization as it eliminates the additive effect of your environment.
The Mini-Zero-Gauss-Chamber is suitable for all M-Test devices.