Common Types of EMF Guide
- Safer EMF
- Oct 23, 2022
- 2 min read
Updated: Dec 2, 2025
The four common types of Electromagnetic Fields (EMFs) we measure at high levels in homes are:
Radio-Frequency Radiation (RFR) / Wireless Radiation
Magnetic Fields
Electric Fields
Dirty Electricity
Radio-Frequency Radiation (RFR or wireless radiation) are radio waves that emit from radio and television, microwaves, 3G/4G/5G, Wi-Fi, Bluetooth, radar and smart devices.
Common sources include:
WiFi and WiFi boosters or extenders
Neighbour WiFi and wireless devices
Mobile phone base station transmitters - 3G/4G/5G
Small cell mobile phone antennas
NBN satellite & fixed wireless
Mobile phones
Laptops
Tablets
Printers
Speakers
Gaming consoles and remote control toys
Ear buds and wireless headphones
Hearing aids and wireless medical devices
Smart watches
Sleep tracking rings
Mouse and keyboard
Smart appliances like TV's, Apple TV's, TV remotes, sound bars, washing machines, fridges, air-conditioners, robot vacuums, air purifiers, coffee machines, etc
Security systems
Baby monitors
Solar panel monitoring systems and inverters
Smart meters
Cordless DECT phones
Microwave ovens
Internet of Things (IOT) devices
Vehicle Bluetooth
Vehicle onboard sim to mobile networks, like in a Tesla
RFR is measured in microwatts (uW/m2) or milliwatts (mW/m2) using EMF Meters.
EMF Meters that measure RFR including low band 5G (up to 8GHz):
Magnetic Fields are created by imbalances in active and neutral electrical wiring, wiring errors or stray current.
Common sources include:
Powerlines
Electrical appliances
Induction cooktops
Electrical switch board and solar inverters
Vehicles
Stray current on water pipes
Electrical wiring errors
Metal house framing
Magnetic Fields are measured in Milligauss (mG) or Nanoteslas (nT) using Gauss or Multi EMF Meters
EMF meters that measure magnetic fields:
Electric Fields are created by the current from unshielded electrical wiring.
Common sources include:
Mobile phone chargers
Extension leads and power boards
Electrical wiring
Electrical switch board
Bed-side lighting
Electrical appliances and charging cables, including laptops, PC's and display screens
Reclining lounges
Electric fields are commonly measured in volts (V/m) using Volt or Multi EMF Meters.
EMF meters that measure magnetic fields:
Dirty Electricity (DE) is a deviation from the standard 50 Hz electrical wave in wiring, which causes spikes in electrical wiring and devices.
Common sources include:
Dimmer lights
LED lighting
Solar panel inverters
Variable-speed motors, like inverter air conditioners
Electric vehicle charging
Neighbour high DE devices like solar panel inverters
DE is commonly measured in millivolts Peak-to-Peak (mVpp) using an Oscilloscope or Power Line Meters.
Meters that measure Dirty Electricity:
Safer EMF measures all 4 sources of EMF during an onsite consultation. We recommend and install effective solutions to reduce your exposure. We also offer phone or video consultations. Learn more about our Services or visit our Shop to hire or purchase meters and shielding products that we use and recommend.
Stay Safe
Safer EMF
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