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The HF38B-W kit includes two handheld meters. The HF38B, which covers a range of 700mhz to 2700MHz, and the HFW35C, which has a measurement range of 2.4 to 6GHz.
This means the kit covers a frequency range of 700Mhz to 6Ghz, allowing you to measure both peak and RMS levels.
With the help of the audio analysis, it is possible to distinguish most radiation sources even without any experience in electronics, such as mobile phones, Wi-Fi, DECT, radar, etc.
The meters also give you an audible sense of the signals being observed. For example, you can hear the difference between a 2.4Ghz and a 5Ghz Wi-Fi signal, simply by listening and comparing with the offered sound samples.