And permanent magnetic Separators. -high-precision gauss meter can be applied to detection of items residual magnetic when after machining, detection Of the magnetic pole distribution and products remaining after the magnetic field demagnetization. And control Measured magnetic field: dc magnetic field / ac magnetic field (static magnetic field / dynamic magnetic Ambient temperature:5 degrees centigrade to 40 degrees centigrade Relative humidity; 20 per cent to 80 per cent(non-congealable dew) Power supply :one 9v battery or 9v external electric supply Overall dimension:160mm*88mm*36mm Instrument weight:300g Display usage: 4 1/2 lcd Display unit: mt/gs Remark:1mt=10gs Seaworthy packing