Analog Display Gaussometer


The MPS Gaussometer is a rugged, hand-held, analog gauss meter designed  for measuring magnetism in the field. Prior to developing the Gaussometer, MPS engineers had years of experience with several types of analog and digital gauss meters which were found either hard to read, or large and cumbersome.   This is why Magnetic Products and Services developed a durable, yet portable and easy to use analog gauss meter that has the accuracy of a high-performance laboratory instrument.

The MPS built Gaussometer and probes are made with the highest quality materials to ensure long durability. Past experience with other gaussmeters requiring frequent probe replacement proved to be not only inconvenient, but costly. To reduce unnecessary probe damage, Magnetic Products and Services developed a flexible and resilient DC probe made of fiberglass. This probe, referred to as the DCP/GR DC Hall effect probe, will give you easy access into tight areas that in the past may have been difficult if not impossible to reach.

The MPS Gaussometer is available with AC Gauss, DC Gauss, and AC milliGauss probes. Model GM-X, for example, includes a AC gauss coil probe for measuring alternating magnetic fields and a DC Hall effect probe for measuring direct magnetic fields.

For the price, the MPS Gaussometer is the lightest, most accurate, and easiest to use gauss meter available.   For more information, call the GAUSSBUSTERS at MPS,  engineers are available to answer any questions or to help with any special needs you may have.

Key Benefits

  • Intuitive operation
  • Provides accurate measurement of both AC and DC magnetic fields (with the appropriate probes)
  • Portable, hand-held and lightweight (less than 2 pounds)
  • Analog display eliminates the "digital jump" and simplifies readout and analysis
  • Zero centered meter eliminates need to switch polarities
  • Range hold switch
  • Eight auto-ranging scales indicated by LED's
  • DC Hall Effect probes and AC coil probes
  • Flexible fiberglass DC probes ensure extended use
  • BatteryPower Check
  • Full scale ranges:
    • 0 to 10,000 milligauss AC
    • 0 to 10,000 gauss AC
    • 0 to ±10,000 gauss DC



Simply advance the selector switch through each position:

CAL To calibrate for the DC Hall probe
DC To measure direct component magnetic fields
AC To measure alternating component magnetic fields
BATT To check battery power


Measurements: Both AC and DC magnetic fields
Typical Utilization: Power, industrial and environmental
Ranges: For AC 0 to 10,000 milligauss
For AC 0 to 10,000 gauss
For DC 0 to ±10,000 gauss (1 Tesla)
Range Hold Switch: Disables automatic ranging and holds the current range.
Scales Available: 8 scales (both milligauss and gauss)
Indicated by LED's


Accuracy: ± 1% of full scale
AC Frequency Response: Flat within 1 dB from 20 Hz to 500 Hz
Weight and Portability: Less than 2 pounds Hand-held
Size: 2¼" x 4¼" x 7½"
DC Calibration: Via CAL front panel thumbwheel
DC Zeroing: Via DC front panel thumbwheel
Power: 4 AA batteries with more than 100 hours of operating life.
Ambient Temperature: -10º C to 60º C (14º F to 140º F)
All Order Codes Include:
  • Operator Manual
  • Carrying Case
  • 4 AA Batteries


Gaussometer Model Order Codes (for use on Purchase Orders) ACP-MR
AC milligauss Range Probe
AC gauss Range Probe
DC probe with 3.5 ft. interconnecting cable, and zero gauss chamber

Gaussometer AC and DC Probe Options:

The AC probes are available in both milligauss and gauss ranges. The DC Hall Effect probes are 8 inches long (transverse orientation) and are made of a resilient, flexible fiberglass that resists damage even under the roughest of industrial conditions.

DC Measurements:

Step 1
Attach the DC Hall Effect probe (can be used with or without the 3 foot extension cable).

Step 2
To calibrate the meter, use the calibration number printed on the probe. Set the selector switch to the CAL position and adjust the thumbwheel until the analog meter registers the probe calibration number.

Step 3
Zero the GAUSSOMETER by inserting the DC Hall probe into the zero gauss chamber. Set the selector switch to the DC position and adjust the thumbwheel until the meter registers zero.

Step 4
Place the probe at the location to be measured. One of the eight scale LED's will illuminate and the meter will register the magnetic field reading. For example: when the 100 scale LED is lit and the meter is registering -5 on the upper scale, the meter's full scale is from -100 to +100, and the magnetic field reading is -50 gauss.

AC Measurements:

Step 1
Attach either a milligauss or gauss range probe and set the selector switch to the AC position.

Step 2
Place the probe at the location to be measured. One of the eight scale LED's will illuminate and the meter will register the magnetic field reading. For example: when using the milligauss probe, if the 30 LED is lit and the meter is registering 1½ on the lower scale, the meter's full scale is from 0 to 30, and the magnetic field reading is 15 milligauss (or gauss when using the gauss range probe).

Checking the Batteries:

Set the selector switch to BATT position, and the meter will register the battery voltage.

    Subject: Re: Auto Degauss ADG by MPS

    Mr H...,

    We Highly recommend the MPS Degaussing Unit, see our answers below [in bold] embedded in your inquiry.

    Good Luck,

    Mr. T...    [Quality Control / Safety Manager from large repair shop in Northeast USA]

    Hello Mr. T....
    We got your reference from an MPS Gaussbuster Electrical Engineer at Magnetic Products & Services, Inc.
    We actually want to procure an Auto Degauss from that company. This is the first time we are going to purchase such product from MPS therefore we want you to share your experience regarding that product. Our purpose of this procurement is to demagnetize steam turbine, compressors, and pumps shafts and casings.   As we discussed on phone please reply to my following queries:
         1- Since how long have you been using Auto Degauss (ADG) [and the Original Auto Demag Unit]?
                Since before 1995.
     2- Are you using this product for demagnetizing pipelines or rotor of machines?
    3- Is it possible to demagnetize a rotor below 02 gauss by using this product?
    Have you done that on any rotor?
    If possible kindly send us some details.
                We do this as our business, please see photos (sorry - not included here).
    4- Is it possible to demagnetize a rotor without removing it from machine by using Autodegauss?
                 Not very effectively, we recommend disassembly.
     5- Is it material specific or it is possible to demagnetize any type rotor material which is magnetic?
                Hysteresis is material specific, therefore some materials are more difficult to demagnetize than others.
     6- Can this product be used to eliminate electrical run out of the rotors from vibration probe sensing area below 2 gauss?

    Your reply will be highly appreciated
    BR - Executive Maintenance (Machinery)

    - A Fertilizer Company in Pakistan,

  • Thanks... We are using your machines every day. 

    - Bryce H.  An upstream/midstream construction contractor,

  • Sandy,
    We would like to purchase an additional Gaussometer and have it shipped to
    (Company Name) in Pa. ...     Please provide an updated quote for this unit.
    FYI, the guys really like this machine, especially the fact that the readout
    is analog, NOT, digital.  It allows them to see the changes in residual
    magnetism instead of having to visualize the changes that a digital device
    would require.


    - Frank N., Senior Manufacturing Engineer of Global Turbomachinery Corp.