A Trifield meter is a type of electromagnetic field (EMF) measurement device that combines three tools into one: a magnetic field meter, an electric field meter, and a radiofrequency (RF) power density meter. This allows you to see and compare the strength of different types of electromagnetic fields in your environment, whether they come from household wiring, appliances, power lines, Wi-Fi routers, cell towers, or other electronic devices.
Most models display field intensity on a screen and can help you identify where certain EMFs are stronger or weaker in a room or near specific devices, making it useful for technical investigation, troubleshooting, or simply learning more about the electromagnetic environment around you.
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