: Measures electromagnetic pollution in Graham-Stetzer (GS) units.
Purchasing (also known as Graham-Stetzer filters) is a strategy used to reduce "dirty electricity"—high-frequency voltage transients and harmonics—on electrical wiring. These plug-in devices are designed to filter electrical noise within the 2 kHz to 150 kHz range, which proponents claim can improve power quality and alleviate symptoms such as headaches or fatigue for those with electrical hypersensitivity. Purchasing Options and Kits
: It helps avoid "overloading" or under-filtering an area by confirming if a filter significantly reduces the reading (at least 20%) at a specific outlet. Key Considerations for Buyers Stetzerizer Filter | Stetzer Electric, Inc.