An RF meter can only report signals inside the frequency range its antenna is built for, and that range is printed on the spec sheet in MHz and GHz. If a device transmits outside your meter’s range, the meter shows a low number or nothing at all, not because the signal is absent, but because … Read more
An EMF meter is a handheld device that measures electromagnetic fields, the invisible energy given off by things like WiFi routers, power lines, phone chargers, and kitchen appliances. Instead of wondering how much is around you, a meter puts a number on it. There are three main types: RF meters, magnetic field meters, and electric … Read more
The numbers on an EMF meter tell you how strong a field is at the exact spot where the meter sits. There are only three unit families you need to know: µW/m² for radio-frequency (RF) signals, mG for magnetic fields, and V/m for electric fields. Once you can read those three, the screen on a … Read more
A three-axis meter measures a field from all three directions at once and combines them into one number. A single-axis meter measures in only one direction, so you have to rotate it to find the strongest angle. Both can give accurate readings; the difference is how much work you do and how easy it is … Read more