Feature: 1. The range of EMF Meters for Ghost Hunting helps measure EMFs to identify devices that produce high level emissions, allowing users to make informed decisions about limiting exposure. 2 . The detectors have been associated with places, where unexplained phenomena have been reported as an alleged haunting. The K2 Ghost Hunting Detector operates on a single battery and reports EMF measurements in five milliGauss ranges. 3. Measure a wide spectrum of EMF from 50Hz to 20,000Hz, and it can record a cellphone that is within 2 feet. 4. Measure the level of electromagnetic fields to protect against potentially harmful long-term overexposure to electromagnetic fields. 5. Convenient push-on/push-off operation; Portable, easy to use, rugged, reliable, super responsive with easy to read LED light scale in dark and sunlight. Specifications: Accuracy: +/- 5%, Detection range: 0 to 20+ milliGauss, Detection Frequency: 30 - 20,000 Hz Easy-to-read multi-segment LED display 5% accuracy at 50-60 Hz Size: 14.3 x 2.9 x 5.3 cm Batteries: with 1 x 9V batteries The five scales: The 1st light detects a field Normal EMF, which is always present us.The range is between 0 to 1.5 mG The 2nd Light (GREEN) detects a Low Level EMF, which range is between 1.5 to 2.5 mG. The 3rd Light (YELLOW) detects a medium level EMF field in the range of 2.5-10 mG. The 4th Light (ORANGE) detects a high level EMF field in the 10-20 mG range The 5th Light (RED) detects an extremely high EMF range of 20+ mG Includes: 1 x EMF Magnetic Field Detector