What Is EMF Radiation and Should Australians Be Concerned?
EMF stands for electromagnetic field — the invisible energy surrounding anything that uses or carries electricity. Your WiFi router, mobile phone, microwave, power lines, even the wiring inside your walls. EMF has always existed; the sun and Earth produce it. What’s changed is the density of man-made sources inside our homes, and how much time we spend close to them. This is a systematic introduction to what EMF actually is, what the research says, and what’s worth doing about it.
Real Measurements from a Palm Beach QLD Home — TriField TF2
Measured with TriField TF2 EMF meter, March 2026. Palm Beach QLD residential home.
What Are the Two Types of EMF You Need to Know About?
ELF (Extremely Low Frequency) — from electrical current. Produced by anything running on mains power: your electrical wiring, appliances, fuse box, power lines. Measured in milligauss (mG) for magnetic fields, or V/m for electric fields. The field drops off rapidly with distance — a gas oven measured 49.8 mG at the cooking position in our Palm Beach home.
RF (Radio Frequency) / Microwave — from wireless devices. Produced by WiFi routers, mobile phones, smart meters, Bluetooth devices, baby monitors. Measured in mW/m². This is the category that has grown most dramatically in recent years — and the one most relevant to where you sleep.
What Does the Science Actually Say About EMF?
I apply the same systematic risk assessment to this question that I applied to environmental hazards during my time as a Navy Clearance Diver. That means: what does the evidence actually show, not what do advocates on either side claim.
High-voltage power lines and ELF magnetic fields: The International Agency for Research on Cancer (IARC) classifies ELF magnetic fields as “possibly carcinogenic” (Group 2B) — the same category as coffee. This is not a definitive finding of harm, but it is a basis for precaution.
RF from mobile phones and WiFi: IARC also classifies RF-EMF as Group 2B. The WHO states that current evidence does not confirm health risks from RF at typical residential exposure levels. The precautionary principle makes sense when the cost of reducing exposure is low.
How Is EMF Measured?
You cannot see, smell, or feel EMF at residential levels — you need a meter. I use the TriField TF2, which measures all three types: RF/microwave, magnetic (ELF), and electric fields on a single unit.
The readings from our Palm Beach home illustrate why measurement matters. The router close-range reading of 3.058 mW/m² dropped to 0.032 mW/m² in the living room — a 95x difference just from distance and one wall. That inverse square law is your most powerful tool: double your distance from a source and you reduce exposure by 75%.
The 93 V/m electric field reading at our bed head was the most actionable finding. Electric fields are produced by wiring carrying voltage — even when appliances aren’t running. Simple solution: unplug lamps and devices near the bed, or use a switched powerboard so the circuit is fully disconnected at night.
TriField TF2 Review — Full Testing Data
Complete review with real measurements from a Palm Beach QLD home — router readings, bedroom electric field audit, and what changed after measuring.
Measure First. Act Second.
The TriField TF2 measures AC magnetic, AC electric, and RF fields in one meter. Without real readings, every EMF decision is a guess. Every room audit starts here.
What Are ARPANSA’s EMF Guidelines for Australia?
ARPANSA sets the maximum exposure limits for EMF in Australia, aligned with ICNIRP international guidelines:
- RF general public limit (2.4GHz WiFi band): 10,000 mW/m² — domestic WiFi exposure is orders of magnitude below this at any reasonable distance
- ELF magnetic field public limit: 1,000 mG — typical household sources measure in single-digit milligauss
- ELF electric field public limit: 5,000 V/m — home wiring produces tens to hundreds of V/m close to the source
Three Changes That Make the Biggest Difference
1. Router on a timer. A $12 smart plug timer turns the router off at 10pm and on at 6am. Our bedroom RF reading with the router on: measurable. With it off: background only.
2. Phone out of the bedroom or on airplane mode. A phone on the bedside table connected to WiFi and mobile data transmits regularly throughout the night. On airplane mode: essentially zero RF.
3. Bed head away from the power outlet wall. Our 93 V/m electric field reading was at the bed head — next to a power outlet. Moving the bed 30cm away from the wall, or switching off the outlet circuit at the fuse box overnight, addresses the electric field component.
Frequently Asked Questions
What is EMF radiation?
EMF (electromagnetic field) radiation is the energy emitted by anything carrying or using electricity. It includes ELF fields from appliances and wiring, and RF fields from wireless devices. At residential levels, EMF is generally below regulatory safety limits, but reducing unnecessary exposure during sleep is considered reasonable precaution.
Is EMF from WiFi dangerous?
At typical residential distances, WiFi RF levels are well below ARPANSA’s public exposure guidelines. The WHO states current evidence does not confirm health risks from RF at typical home levels. IARC classifies RF as “possibly carcinogenic” Group 2B — which reflects scientific uncertainty rather than confirmed harm.
How do I measure EMF in my home?
You need an EMF meter. The TriField TF2 measures RF, magnetic, and electric fields in one unit. It’s the meter used for testing at our Palm Beach home. A full room audit takes about 30 minutes and tells you exactly which sources matter in your specific home.
What is a safe EMF level in a bedroom?
ARPANSA regulatory limits: 10,000 mW/m² RF, 1,000 mG magnetic, 5,000 V/m electric. Building biology precautionary guidelines for sleeping areas are much lower: below 0.1 mW/m² RF, below 1 mG magnetic, below 10 V/m electric. These are not regulatory requirements — they’re targets used by building biologists for long-term chronic exposure assessment.
Does distance from EMF sources really matter?
Yes — it’s the most important variable. EMF follows the inverse square law: double the distance and you reduce exposure by 75%. Our router measured 3.058 mW/m² at close range and 0.032 mW/m² across the living room — a 95x difference.
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Former Royal Australian Navy Clearance Diver and TAG-E counter-terrorism operator. Founded Clean and Native to apply the same rigorous thinking to the home environment.
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