This EMF/ELF Tri-Axis Gauss Meter is a scientific instrument for measuring electromagnetic fields (EMF) with extremely low frequency (ELF) of 30 ~ 2000 Hz. The reading in milliGauss (mG) and microTesla (µT) are switchable anytime with just one press of a button. All parts are of professional quality and Made in Taiwan, it accurately measures EMF pollution in your environment. It has given approval from European Directives for health & safety standards (CE Marking). You can be sure of its high quality, safety and accuracy. Set Includes 1 x Tri-Axial EML/ELF Meter 1 x 9V battery 1 x Carrying bag 1 x English Instruction Manual Standard Factory Package Features Uses three internal orthogonal sensors to test a wide range of ELF magnetic fields, independent of measurement angleDesigned to provide the user with a quick, reliable and easy way to measure magnetic field radiation levels around power lines, home appliances and industrial devicesCost-effective hand-held instrument that was designed and calibrated to measure magnetic field radiation at different bandwidths from 30Hz to 2000Hz