The rugged, handheld EMF20 measures ELF electromagnetic fields (30 to 300Hz) produced from electric transmission equipment, power lines, microwave ovens, air conditioners, refrigerators, computer monitors, fans, hairdryers, and many other appliances that emit electromagnetic fields. Measurements have a guaranteed ±2.5% accuracy, and can be displayed in milligauss (mG) or µTesla (µT).
Other helpful features of the EMF20 Magnetic Field Meter include its single axis sensor, max hold function for storing the highest reading, and included carrying case to keep the unit safe en route to the site. The EMF20 is also backed by a one-year warranty.