Hidden spy microphone Detector app uses your devices magnetic sensor to measure magnetic field values and turns your phone into a real Spy Devices Detector. Data is displayed in µT (micro Testla). 1µT = 10mG (milli Gauss). The magnetic field in nature ranges from 25 to 65 µT (0. 25 to 0. 65 g). Any higher measurement is an indication of spying Microphones in the area.
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