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 overexposure to ...
I recently built a simple electromagnetic field (EMF) detector based on a code by Christian Figge that I found on the web. My design includes a 10-LED bar graph (from eBay), which I used to display ...
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