The Electro-Smog indicator ESI24 is simpler than Analyzers. The Indicator detects radiation but does not show detailed data. Instead of a display with measured values, it is usually lights or sounds that indicate whether an electromagnetic field is present. An Analyzer (FA + numbers) shows the amount of radiation on a display with numbers. The Safe and Sound Pro II meter is our favourite meter. The meter has been tested and certified by third parties. Ready for 5G!