Model 931 Gauss meter (Tesla) is the world's most advanced three-dimensional magnetic field vector test platform currently, can work with three-dimensional micro platform. It consists of SW-50 probe and the main meter.

The main meter uses ARM 24 bit microcontroller technology.To ensure the real-time data, three signal acquisition perform at the same time. And can be adjusted to achieve static and dynamic conversion.The accuracy( 0.01%), resolution（0.00001mT）, temperature drift coefficient （0.01%）, repeatability(0.001%), bandwidth (100KHz) and other major parameters have reached the world's top level. Main meter front panel with 7 inch color LCD display can display all the information required .

Model 931 can be fitted with a wide range of three-dimensional hall probe, mainly including high temperature +240℃, low temperature -273℃, high frequency 1000KHz, micro 1mm, anti-corrosion, anti vibration, circular and square.