Maurer Magnetic M-Test LL Gauss Meter

Maurer Magnetic M-Test LL Gauss Meter

Measure residual magnetism quickly and reliably


Measure residual magnetism quickly and reliably

The Maurer M-Test LL Teslameter (Gauss Meter) was specially developed for simple, reproducible measurement of residual magnetism. Thanks to the quick-responding LED on the probe tip, even fine-pole fields on the component can be reliably measured. In addition, the maximum value of the north and south pole is automatically saved and displayed.


  • Fast detection of even the smallest amounts of residual magnetism with LED indication
  • Automatic storage of maximum values for north and south pole
  • High quality aluminum housing with color touch screen and reset for maximum values
  • Selectable units: Gauss, A/cm, mT
  • Measuring Range: +/-200 Gauss (or +/-160 A/cm, +/-20mT)
  • Measures the smallest magnetic fields due to the short distance between the sensor and probe surface
  • AC and DC-Field measuring*
  • AC Peak and RMS selection
  • Digital zero adjustment
  • Temperature compensated sensor - no drifting
  • Accu status indicator
  • Battery life up to 7 hours
  • Integrated analog interface
  • For use in laboratory, development and production

*The AC-Field measurement is intended as a rough estimation of the magnetic field (e.g. exposure in people). 
The basic configuration has an analog output. With an optional USB interface, the measured values can be reviewed on a PC. Software included.

Maurer Magnetic Units Converter

Click Here to Use the Magnetic Units Converter

Technical Specifications

M-Test LL Specifications

Range in Magnetic DC Field +/- 200 Gauss / 160 A/cm / 20 mT
Resolution 0.1 Gauss / 0.1 A/cm / 0.01 mT
LED Threshold +/- 2.1 Gauss / 1.7 A/cm / 0.21 mT
Analog Output +/- 1.4 V of full scale
Accuracy in Homogenous DC Field 1% of full scale, +/- 1 Digit
Frequency Range in AC Field Approx. 15 Hz to approx. 5 kHz
Sensor Type M-Test LLP 0.5 Transversally mounted Hall effect sensor, temperature compensated, no drift
Measuring Distance 0.5 mm distance from Hall effect sensor to probe surface
Polarity Indication on LED Red = north pole, green = south pole, orange = measuring range exceeded or alternating field
Automatic Switch-Off 15 min on battery
Battery Type / Charging Time Lithium Polymer battery, 2 cells / approx. 6-7 hrs. charging time
Battery Life Approx. 7 hrs.
Probe Cable Oil resistant spiral cable, stretched 6.56' (2m)
Dimensions of Indication Device 6.5" x 4.2" x 1.3" (166 x 34 x 106mm)
Dimensions of Probe 2.8" x 0.5" x 0.14" (70 x 12 x 3.5mm protruding from handle)
Dimensions of Sensor 0.35" x 0.12" x 2.80" (9 x 3 x 71mm)
Probe and Indicator Weight / Shipping Weight 1.1 / 2.2 lbs (500 / 1000g)

Kit Includes

Standard M-Test LL Instrument Kit

  • M-Test LL Instrument
  • Probe
  • Spiral cable to connect the probe
  • USB cable
  • Charger
  • Operating Manual
  • Soft Storage case

M-Test LL Adapter Reference Magnet (DE-MM-T-00080-3)


Additional Options

  • Calibration certificate for documenting traceability to national standards
  • USB interface with software
  • Adapter for measuring distance of 2.0mm
  • Reference magnet
  • Instrument case
  • Mini Zero Gauss Chamber for Zeroing Probe free of external influences
  • Zero Gauss chamber 17" or 21" for residual magnetism measuring
Description Part # Saved Price Select Option Add to
Maurer Magnetic M-Test LL Kit, Includes Instrument and LLP 0.5 Probe with Ceramic Face DE-MM-T-MTESTKIT-C $1,899.00
Maurer Magnetic M-Test LL Indicating Device DE-MM-T-00001 $1,125.00
Maurer Magnetic M-Test LL Probe LLP 0.5 with Ceramic Face DE-MM-T-00018-C $830.00
Maurer Magnetic M-Test LL Software & USB Interface DE-MM-T-00030 $475.00
Maurer Magnetic M-Test MKIII Reference Magnet DE-MM-T-00080 $390.00
Maurer Magnetic M-Test LL Adapter Reference Magnet DE-MM-T-00080-3 $58.00
Maurer Magnetic M-Test LL Calibration certificate for documenting traceability to national standards DE-MM-DL50 $545.00
Maurer Magnetic Mini Zero Gauss Chamber DE-MM-T-0070 $375.00