This RF EMF strength meter monitors high frequency radiation in the 50 MHz to 3.5 GHz range. Ideal for mobile phones, cell phones, base stations, locating RF hotspots, wireless network (Wi-Fi) RF detection, RF "Electrosmog" detection and microwave leakage. It features non-directional measurement with 3-channel (triaxial) measurement probe, max hold and average functions and manual store/recall of up to 99 data sets. In addition, there is an audible alarm with a user selectable threshold. The meter comes complete with a 9 VDC battery and carrying case.