Multifunctional Electromagnetic Field Detector: Measures electromagnetic fields to identify devices with high emissions, helping users limit exposure. The EMF ghost detector helps measure electromagnetic fields and identify...Devices that generate high radiation levels allow users to make informed decisions about limiting their exposure. Paranormal Investigation Tools: These detectors are linked to locations where unexplained phenomena have been reported, such as so-called ghostly apparitions. Single-Cell Battery Operation and Accurate Measurement: The ghost detector uses a single cell and reports an electromagnetic field reading of five milligauss. High Sensitivity for Short-Distance Detection: Can measure a wide range of electromagnetic fields from 50 Hz to 20,000 Hz and detect mobile phones within a radius of 60 cm. Measuring electromagnetic field levels helps prevent potentially harmful...Long-term exposure to electromagnetic fields. Easy to Use: Portable, user-friendly, robust, reliable, responsive, and has easy-to-read LED markings in both darkness and sunlight.