This is NOT what I bought, but should have. https://www.amazon.com/ SOEKS EcoVisor F4 Geiger Counter Radiation Detector Dosimeter Nitrate Tester EMF Electromagnetic Electric Magnetic Field Device Water Quality TDS Meter Portable Electronic Touch Screen Easy to Use A really decent EMF tester should cost close to $300 I have read. The one I bought was $30 something. I wanted to just delve into this world, and not make it a profession. It is frightening as funk how many fields and leaks you will find. Moved my bed one foot away from wall. You will want to run your microwave inside a faraday cage. My 20+ year old nightstand led clock had as much EMF as my microwave. If you are worried about EMFs, all your fears and more will come true.