Safe and Sound PRO II meter is our favourite radiation meter. Compact, easy to use meter for Radio Frequencies / Microwave Radiation. Ready for 5G! The meter has been tested and certified by third parties. Also includes a premium OLED Display for digital measurements from 0.001 µW/m² and up to 2,500,000 µW/m², Maximum Grip, Maximum Reset Button, USB Power Connection for Continuous Monitoring, Volume Control, Headphones, Calibration Certificate and more! Safe and Sound CLASSIC is a smaller and simpler version with less detailed information.