4. Test Gauss, from radiation, good for health. The K2 flowmeter is often used during and also for personal safety to identify potentially harmful high EMF radiation. Feature: 1. Special function 5-LED indicator light represents different radiation values. Application of 50/60Hz frequency monitoring, dark green 0 to 1.5 mgauss; green light 1.5 to 2.5 mgauss; yellow 2.5 to 10 mgauss; orange 10 to 20 mgauss; red 20 + mgauss. 3. Run on battery (not included) and report EMF measurement values in the range of 5 milligauss. Used for supernormal wave research and general EMF test. 2. Easy to read LED lights in darkness and sunlight. Portable, easy to use, , reliable and responsive. 5. The K2 flowmeter is known for its reliability and quality in the study of paranormal phenomena. This makes the K2 EMF instrument a perfect tool for detecting mental activity and detecting potentially harmful high EMF levels in the home or work environment., Weight: 0.13668660244 Pounds, Manufacturer: Tuidzljd