Feature:The range of ghost hunting EMF meters helps measure electromagnetic fields to identify devices that produce high levels of radiation and allows users to make decisions about limiting exposure.Easy to read multi-segment LED display. The detector is assigned to the site and the unexplained phenomenon is reported to be related to radiation.The Ghost Hunting Detector runs on a single battery and reports EMF readings in the 5 milligauss range.With a wide range of EMFs from 50 Hz to 20,000 Hz, cell phones can be detected within 2 feet.EMF levels are measured to prevent potentially harmful long-term overexposure to EMF.Color black / whiteMaterial: ABSAccuracy: +/- 5%Size: 14.3cm x 5.2cm x 2.5cm (L*W*H)Detection range: 0 to 20+ milliGaussDetection frequency: 30 - 20,000 HzCharacteristics:-Easy to read multi-segment LED display.-The ghost hunting EMF measurement range helps measure electromagnetic fields to identify devices that cause high emissions, allowing users to make informed decisions about limiting exposure.-The detectors have been linked to locations where unexplained phenomena such as alleged hauntings have been reported.-The Ghost Hunting Detector runs on a single battery and reports EMF readings in five milligauss ranges.-Measure a broad spectrum of EMFs from 50Hz to 20,000Hz and it can register a cellphone that is within 2ft.- Measure EMF level to protect against potentially harmful long-term overexposure to EMF.- Convenient push-on / push-off operation; Portable, easy to use, robust, reliable, very responsive with easy to read LED light scale in darkness and sunshine.The five scales:The 1st light detects a normal EMF field that is always around us. The range is between 0 and 1.5 mGThe 2nd light (GREEN) detects a low EMF which ranges from 1.5 to 2.5 mGThe 3rd light (YELLOW) detects a medium EMF in the range between 2.5 and 10 mGThe 4th light (ORANGE) detects a high level EMF field in the range between 10 and 20 mGThe 5th light (RED) detects an extremely high EMF range of 20+ mGDelivery content:1 x EMF Magnetic Field Detector (Battery is included)