Feature: 1. The range of ghost hunting EMF meters help measure electromagnetic fields to identify devices that produce high level emissions, allowing users to make informed decisions on limiting exposure . 2. The detectors have been associated with locations where unexplained phenomena such as suspected hauntings have been reported. The K2 Ghost Hunting Detector operates on a single battery, and reports EMF measurements in five milliGauss ranges. 3. Measures a broad spectrum of EMFs from 50 Hz to 20,000 Hz, and can record a cell phone within 2 feet. 4. Measures EMF level to protect against potentially harmful long-term overexposure to EMFs. Convenient push or pull operation Portable, easy to use, rugged, reliable, super sensitive with an easy to read LED light scale in the dark and sunlight 6. Specifications: Accuracy: or - 5 percent , Detection range: 0 to 20 milliGauss, Detection frequency: 30 - 20, 000HzEasy to read multi-segment LED display5 percent accuracy at 50-60HzSize : 14.3 x 2.9 x 5.3cmBatteries : with 1 x 9V batteryFive scales: The 1st light detects a normal EMF field, which is always around us . The range is between 0 and 1.5 mGThe 2nd light (GREEN ) detects a low level EMF, whose range is between 1.5 and 2.5 mG . The 3rd light (YELLOW) detects a medium level EMF in a range between 2.5 and 10 mG. The 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 mGincludes :1 x EMF Magnetic Field Detector Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.