Safe range EMF meter has multi-segment LED display, ghost hunting helps measure the electromagnetic fields to identify appliances that produce high-level emissions, ideal where
unexplained phenomena have been reported like alleged haunting, works on a single battery, reports EMF measurements in five milligauss ranges, measure wide spectrum of EMFs from 50 Hz up to 20,000 Hz, can register a cell phone that is within 2 feet, measure EMF level protect from potentially harmful long term overexposure to EMFs, convenient push-on / push-off operation, portable, easy to use, rugged, reliable, super responsive with easy to read LED light scale in dark and sunshine.