GM series of handheld digital Gauss / Tesla of DC can be used to measure magnetic fields, magnetic fields, such as exchanges of various types of magnetic field strength of magnetic induction. The instrument can carry, the range of wide and easy to operate, liquid crystal display clear. Power for a 9 V batteries, 20 hours of continuous use.
Third, the scope of application:
    GM55 type of hand-held digital Gauss, permanent magnet material surface magnetic field, DC motor, speakers, magnetic separator, permanent magnet Separators the work of the magnetic field. And machining can be applied to detect residual magnetic materials after the detection pole distribution, product Demagnetization remaining after the magnetic field, and controlling the electroplating with magnetic materials, motor magnetic detection, leak detection of the magnetic field.
Fourth, technical indicators:

range of: 0 ~ 200 mT ~ 2000mT
    fundamental error: ± 5%
    resolution: DC × 1: 0.00 ~ 200.00mT 0.01mT

  DC × 10:0.0 ~ 2000.0mT 0.1mT
              AC × 1: 0.00 ~ 200.00mT 0.01mT
              AC × 10:0.0 ~ 2000.0mT 0.1mT
     measured magnetic field: DC magnetic field / exchange magnetic field (static magnetic field / dynamic magnetic field)
     function: to maintain peak function
     Gs (Gaussian) / mT (millitesla) can automatically switch
     DC measurements have N / S polar Show
     rapid automatic button,
     ambient temperature: 5 ℃ ~ 40 ℃
     Relative Humidity: 20% to 80% (non-Ning Lu)
     power supply: a 9 V battery-powered 9V
     appearance size: 160 mm × 88mm × 36mm
     equipment weight: 300 g
     display: 4 1 / 2 LCD
    display units: mT / Gs
     Note: 1 mT = 10Gs