✅ The range of EMF meters used for ghost hunting helps to measure electromagnetic fields to identify devices that generate high radiation, enabling users to make decisions about limiting exposure. | ✅ Easy-to-read multi-segment LED display. The detector is associated with the location and it is reported that the unexplained phenomenon is related to radiation. | ✅ The Ghost Hunting Detector operates on a single battery and reports EMF measurements in the 5 milligauss range. | ✅ Measuring a variety of EMFs from 50 Hz to 20,000 Hz, it can register mobile phones within 2 feet. EMF levels are measured to prevent potentially harmful long-term overexposure to EMF. | ✅ US DIRECT SHIPPING: Provides carefree return within the states! If our product doesn't work well or exist any problem.Please kindly contact customer service.