Item description from the seller
Gauss Meter Magnetic Field Strength Detector Tesla Meter Fluxmeter Surface MagneticField Tester with Ns Function + Metal Probe
Model: WT10A
Range: 0-200mT-2000mT
Basic error: +/- 2% +/- 3 words (1000mT or less)
+/- 5% +/- 3 words (1000mT or more)
Resolution: 0.1mT, 1mT
Display: 3 1/2 LCD display, measurement with N, S pole automatically display
Display unit: mT
Measured magnetic field: DC magnetic field (static magnetic field)
Ambient temperature: 5 degrees Celsius -40 degrees Celsius
Relative humidity: 20% -80% (no condensation)
Power supply: four AA batteries, external power supply
Dimensions: 150mm * 70mm * 30mm
Instrument weight: 450g
Note: 1mT = 10Gs