Radiation Tester Dosimeter for GEIGER Counter Key benefits Helps you monitor electromagnetic radiation in your environment to minimize exposure and support health. Simple ataglance monitoring with 5 LED indicators that represent different radiation levels. 50/60 Hz frequency monitoring to check compatibility with common power sources. Readings are provided in milligauss for clear, comparable measurements. How it works and readings Five colorcoded LEDs indicate radiation levels: Dark green: 05 milligauss Green: 1.52.5 milligauss Yellow: 2.510 milligauss Orange: 1020 milligauss Red: 20 milligauss Easy to use Requires a 9V 6F22 dry battery (not included). English user manual included to guide setup and operation. Design and materials ABS construction delivers durability and longevity. Available in multiple color options: black, blackred, redblack, or red. Use scenarios Home or office environments near electrical devices to monitor EMF exposure. Workshops or maintenance areas with electrical equipment to observe radiation levels. Areas near power panels or suspected radiation sources to verify exposure before extended presence.