Diverse Technologies MF300H+

Diverse Technologies MF300H+

Magnetic Field Meter

Made for Magnetic Particle Testing

The Diverse MF300H+ hand-held battery operated Magnetic Field Meter, with its rugged stainless steel Hall effect probe, is suitable for laboratory and workshop use. The meter uses a membrane key pad and a digital display, which makes it simple to operate, but at the same time, offers the ability to do complex measurements. A wide range of settings, measurement modes and units can be set by the user through the menu driven user interface. The operating modes allow magnetic measurements in most industrial and laboratory applications. Auto zero can be requested at any time by the press of a single key. Measurements of magnetic fields together with the selected units and a linear progress bar scale are displayed on the instrument. Operating modes are average, absolute peak, bipolar peak and true RMS. There is a built-in data logger that can collect 100 samples in the chosen measurement mode and at a selectable rate. The results can be viewed on screen or optionally downloaded via the serial RS232/USB interface. Software for use with the meter is provided with the serial option which enables data to be saved and entered in spreadsheets.

Rugged Stainless Steel Probe

Magnetic Test Bench Mode - LO reading


  • Average, RMS and Peak (absolute & bipolar) Operating Modes
  • Multiple units of measurement
  • Rugged stainless steel probe
  • Magnetic Test Bench Mode - It switches the instrument to the correct range and mode and compares the field level with a pre-defined level, typically 2400 A/m. If the field is below this then <LO> is displayed, otherwise <OK>.
  • Built-in data logger
  • Continuous Bar Graph display of level
  • Remembers previous settings
  • High Current Measurement Mode - Allows calibration of the setup and measurement of the current in all measurement modes. It will work to a current of 250kA, typically found in aluminum smelting plants.
  • Auto power off, Auto Zero facility
  • Certification to NPL traceable standard
  • Supplied with protective carrying case

Technical Specifications

Magmeter MF300H+ Specifications

Manual Ranges (Full Scale): Low: 199.0G (0.019T)
Medium: 1999G (0.19T)
High: 19990G (1.9T)
Auto Range: Automatically adjusts range with field
Selectable Units: Tesla, Gauss, Oersteds, kA/m, kA at set range
Measurements Modes: Average, absolute peak, bipolar peak, true RMS
Display: 4 lines of 16 characters shows values, units, modes, ranges and bar graphs
Internal Data Sample Rate: 500 per seconds
Accuracy: 1% full scale at 68°F (20°C)
Probe Size: 0.09" x 0.26", 3.9" long (2.2 x 6.5 mm, 100mm long)
Non Destructive Testing: Magnetic Test Bench Mode
Logging: 100 samples, inter sample time: 1-1000 seconds
Log Review and Clear: User can scroll through the logged data in groups of 4 and zero the whole database.
Averaging: Data collection and RMS averaging is set at default 16 samples. User can select from 1, 4, 16, 64 and 256.
Bar Graph: Continuously shows relative reading. Mono or bipolar mode.
Zeroing: Automatic to current field. Calibration zero recall for high ambient fields.
Probe Cable Length: 4.9 ft. (1.5m) typical
Calibration: Calibrated by Diverse to NPL traceable standard. 12 month recalibration required for ISO9000 quality standard.
Power: 4 standard AA cells, typical lifetime 12 months. Continuous use 30 hours.
Low Battery: Automatically detects and warns user
Instrument Dimensions: 6.5" x 3.9" x 2" (165 x 100 x 50 mm)
Weight in Case: 2.4 lbs. (1.1 kg)
Operating Temperature: 50°F - 104°F (10° - 40°C)
Storing Temperature: 32°F - 176°F (0° - 80°C)
Humidity: 0 - 90% non condensing
Display Update Rate: 0.3 seconds

MF300H+ Kit Includes:

  • MF300H+ handheld meter
  • Tangential H Probe
  • Calibration Certificate
  • Red Carrying Case

The MF300H+ Includes a 12 Month Warranty

Product Literature

Description Part # Saved Price Select Option Add to
Diverse Technologies MF300H+ Kit with Tangential Field Probe, Manual, Carrying Case MT-DT-MF300H+ $1,395.00
Diverse Technologies RS232/USB Port, Cable and Software Option MT-DT-MF300H-USB $245.00