Use a radio frequency (RF) meter to check for unusual microwave or RF emissions
Use a broadband electromagnetic field meter to detect abnormal EM levels
Use a thermal camera to look for localized heating on walls, windows, or objects
Use an infrared thermometer to compare temperatures in suspicious areas
Inspect for unexplained burns, melting, discoloration, or warped materials
Check for repeated interference with Wi-Fi, Bluetooth, radios, or electronics
Use a spectrum analyzer to identify unusual signal patterns
Look for synchronized effects across multiple devices at the same time
Compare readings at different times of day and in different rooms
Test from multiple locations inside and outside the home
Document all readings, times, and observed effects consistently
Verify meter calibration before relying on results
Rule out common sources such as routers, appliances, power lines, and nearby transmitters
Consult a qualified RF/EMI technician for confirmation
Contact local authorities or emergency services if you suspect an immediate safety hazard