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Tesla Meter / Gauss Meter – TM-901EXP

High-Precision Magnetic Field Measurement Instrument

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The Ultimate Standard in Precision Magnetic Analysis

Measure DC and AC magnetic fields with industry-leading accuracy using the TM-901EXP Tesla Meter—a trusted choice for engineering, research, and quality control.

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High-Resolution Hall-Effect Precision for Micro-Magnetic Analysis

The TM-901EXP is equipped with a highly sensitive Hall probe, engineered to detect even subtle magnetic field variations across a wide frequency range (40–500 Hz).

Model Features

Technical Specifications

Technical specification
ModelTM-901EXPFunctionZero reset Max. detect value holdPolarity indication Auto power off (can be canceled)
Detecting ContentsDC magnetic flux density AC magnetic flux density polarities ( N, S ) ( 40-500Hz )OutputUSB communication port /output(analog)
MeasuringmTModeDetection value Numeric value (digital) Polarity Alphabets (N/S)
Indication Range0~3000.0mTOperating Temperature0~+40 ℃

Measuring

Technical Specifications

MeasuringMeasuring ModeMeasuring RangeResolution Analytical AbilityIndication AccuracyDisplayLCD
DC×1 ※10~200.0mT0.1 mT±(5%of rdg.+ 3digit )Power SourceBattery SUM-3 (1.5 V) X 4 pieces DC5-6V adapter input/ USB
200.1~3000.0mT1 mT±(5%of rdg.+10digit )
DC×100~300.00mT0.01 mT±(3%of rdg.+ 5digit )DimensionHeight 140(5.51) X width 64(2.51) X thickness 30(1.18)
AC ※10~150.00mT0.01 mT±(5%of rdg.+20digit)MassApprox. 250 g/0.55 lb (including batteries and probe)
150.1~300.0mT0.1 mT
301.0~1500.0mT1 mTAccessoriesProbe, batteries and carrying case
※1The measuring ranges are automatically selectedOptionAxial probe (TM-801AXL) Reference magnetic field for Tesla Meter(TM-SMF)

Key Features

1

Measures both DC and AC magnetic flux density

2

Wide range: 0 – 3000 mT (0 – 30,000 Gauss)

3

High resolution: up to 0.01 mT (0.1 G)

4

USB output for data logging and PC connectivity

5

3-way power source: Battery, AC adapter, and USB

6

Auto power-off to conserve energy

7

Durable sheet key design for high dust resistance

8

Replaceable Hall probe—no calibration required

9

Includes free PC software for measurement analysis

Key Applications

1

Measurement of DC & AC magnetic fields (40–500 Hz)

2

Polarity detection of DC magnets (N/S)

3

Evaluating magnetic rollers (e.g., in laser printers)

4

Detecting residual magnetism in mechanical parts

5

Measuring natural magnetism in steel and alloys

6

Testing superconductive magnet leakage fields

7

Validating magnetic field strength in motors, sensors, and home appliances

8

Quality control in automotive and industrial manufacturing

What's in the Box

1

TM-901EXP Tesla Meter

2

Standard Hall Probe

3

4 × AA Batteries

4

Durable Carrying Case

5

USB Cable

6

Free PC Software

Frequently Asked Questions

Both terms are used interchangeably. Tesla (T) and Gauss (G) are units of magnetic flux density. 1 T = 10,000 G.

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