The meter comes complete with orthogonal measurement head which can be either hand-held or mounted. The unit is essentially a sophisticated and accurate “walkabout”. The measured value is the rms of an assumed sinusoidal waveshape in milli or microTesla. The unit is battery operated with approximately 8 hours of use. The readout is a digital LCD display supported by an analogue meter. Interfaces with other instrumentation via analogue o/p.