A Gauss meter is a precision measuring instrument used to detect and quantify magnetic fields, specifically the strength and sometimes direction of the magnetism present around electrical systems, magnets, or environmental sources. It displays magnetic field intensity in units such as gauss (G) or tesla (T), with 1 tesla equal to 10,000 gauss.
Modern Gauss meters typically use a Hall effect sensor to convert magnetic field presence into a readable electrical signal. These tools are commonly used in engineering, research, industrial settings, and environmental monitoring to assess magnetic fields from motors, electrical wiring, power lines, and magnetic materials.
While Gauss meters are excellent for mapping and comparing magnetic field strength in technical contexts, they focus only on magnetic components of electromagnetic fields—not the full spectrum of EMFs people encounter from phones, Wi-Fi, or other wireless signals.
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