He suspected EMF interference so as a quick first step he decided to throw together an EMF detector using an Arduino. It uses a bank of LEDs as an indicator bar to reflect the EMF picked up by the ...

EMF Radiation Meter---Measuring a variety of EMFs from 50 Hz to 20,000 Hz, it can register mobile phones within 2 feet. EMF levels are measured to prevent potentially harmful long-term ...

EMF meters can combine magnetic, electric and radio frequency (RF) or microwave detection in a single package ... electric can openers, hair dryers, and power tools. Magnetometers are used to measure ...