The Magnaflux® Magnetic Field Indicators, also known as gauss meters or magnetometers, are used to check residual magnetism after magnetic particle testing. They read the amount of residual magnetism left in a part quickly when the indicator arrow is placed against a magnetized part. The field indicators are available in both general purpose and non-calibrated and calibrated models and can be re-calibrated through Magnaflux® Authorized Service Centers.