1. The EMF Detector for Ghost Hunting helps measure EMFs to identify devices that produce high-level emissions - Allows users to make informed decisions about limiting exposures. 2. The detectors have been associated with locations, where unexplained phenomena have been reported as ghosts. The K2 Ghost Hunter Detector operates on a single battery - Reports EMF measurements in the range of five miligauss. 3. Measures a broad spectrum of electromagnetic fields between 50Hz and 60Hz - It can record a cell phone that is within a range of 60cm. 4. Measure the electromagnetic level to protect yourself against overexposure to electromagnetic fields which can be harmful in the long term. 5. Convenient Use - One button operation to turn it on and off - Portable - Rugged - Reliable - Highly responsive with scale with LED light easy to read in dark and sunlight.