Microwatt a unit of power equal to one millionth of a watt. Symbol : μW, μw MILLIWATT-    a unit of power equal to one thousandth of a watt. Abbreviation : mW MILLIGAUSS-  One-thousandth of a gauss (mG). It’s the unit of measurement for magnetic fields most commonly used in North America TESLA “T” – … Continue reading Understanding EMF