VAT系列数字式特斯拉计，基于霍尔效应，用于测量各种铁氧体永磁、稀土永磁的表面磁场、间隙磁场，各种通电线圈所产生的磁场，及金属零件的剩余磁场。三位半数字显示，N，S极直接区分，便于用户携带。可匹配横向、纵向和薄型探头。

VAT series digital Teslameter is a kind precision instrument applying Hall effect to measuring the magnetic field strength. It can be used to measure the surface magnetic materials, the magnetic field in the gap of magnetic circuit of loudspeaker, the magnetic field produced by electrified coils, and the remanent magnetism of metal parts. The value of magnetic field strength is displayed in digitals. And N,S pole can be distinguished directly. This teslameter in measuring, easy to operate, light in weight, convenient for carrying, etc. Three kinds of measuring probes,viz.transverse,longitudinal and thin probe head can be provided.Users can choose the probe according to what they need.