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Room EMF explorer

Place devices, compare distances and add your own meter readings.

Explore sources and distances. This tool does not estimate radiation levels or label your room safe or unsafe.

01 / SET UP YOUR ROOM

Start with the example TV and phone, or add your own devices. Positions are examples; move them to match your room.

02 / EXPLORE YOUR LAYOUT

Living room

Select a marker, then tap anywhere in the room to move it. You can also use the position fields or arrow keys (0.1 m steps).

Schematic top view; not to scale. Distances exclude height and are not exposure estimates. “You” marks your seat or sleeping position.

03 / ADD ACTUAL MEASUREMENTS (OPTIONAL)

Compare your meter readings

Measure at the same position with the same instrument, mode and orientation. Change one thing at a time. These are your readings, not values predicted by this website.

How this explorer works

Distances use straight-line geometry between the positions you choose. Saving a layout lets you compare distances after moving devices. Device types and settings suggest which fields to investigate; they do not determine their strength. Walls, reflections, wiring, other rooms and external sources are not modelled.

Wireless activity and actual device behaviour vary. Switching a device off in this inventory is a note about its state, not proof of zero fields. No field strengths, exposure reductions or health conclusions are calculated from your layout.

Background: WHO: electromagnetic fields · FDA: radiofrequency radiation and cell phones · Our measurement guide