5 led emf meter magnetic field detector ghost p

Features: Fine workmanship and nice performance. Accurate and Reliable; has high durability. It operates on one battery and reports electromagnetic field measurements in the range of five millimeters Gauss. It measures a wide spectrum of electromagnetic fields from 50 Hz to 20,000 Hz and can register a mobile phone up to 2 feet away. Measure electromagnetic field levels to protect against potentially harmful long-term overexposure to electromagnetic fields. Help measure electromagnetic fields to identify devices that produce high levels of emissions. Help protect you from radiation that is beneficial to your health. Easy-to-read multi-segment LED display; easy to use. The range is 0 to 1.5 mG. The second light (GREEN) detects low-level electromagnetic fields in the range of 1.5 to 2.5 mG. The third light (YELLOW) detects an average EMF level in the range of 2.5 to 10 mG. The fourth light (ORANGE) detects a high-level EMF field in the range of 10 to 20 mG. The fifth light (RED) detects an extremely high range of 20 mG electromagnetic fields. 2.