TriField Meter Source: https://www.amazon.com/gp/product/B078T2R64C/ref=ox_sc_saved_image_6?smid=A2OW4ZWET280BU&psc=1 Detects all three types of EMF pollution: AC magnetic, AC electric, and RF/microwave Displays signal level, peak level, and a fast indicator bar (for pulse monitoring) AC magnetic, AC electric, RF/Microwave (measures total RF signal but NOT frequency) AC fields: can measure standard measurements or weighted (proportional to current induced in the human body)