EMF Sensor

EMF Sensor

5,000 - 10,000 downloads

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Use the magnetic field sensor on your phone to take EMF readings. Works like a 3 axis EMF meter. Displays EMF in milli Gauss (mG) or micro Tesla (uT). This data can be displayed on a customizable graph with optional auto ranging capability. Uses include ghost hunting, paranormal research, finding sources of EMF radiation, monitoring EMF levels, and/or curiosity.

Instructions for use:
Preferences can be found by pressing the menu button. Many display options are available to customize what is on the screen.
The range on the meter can be changed in the options or by sliding your finger up or down on the screen. The left side of the screen adjusts the minimum, the right side adjusts the maximum. You can lock or unlock touch adjustments through the menu.
Auto Range Mode can be selected to affect the graph range, the graph and the UI range, or neither. It is suggested to select "Graph and Interface" to have fully automated range control.
Baseline Mode lets you set a baseline value that will be subtracted from the reading.
Custom color values can be set for the text and graph line. Sound can be enabled and customized in preferences, default is off. This will play a tone at a rate determined by the EMF reading, similar to a Geiger counter.
More detailed Instructions are available from the menu within the app.

This app was designed to be lightweight, fast, and free of gimmicks. Please email any questions, comments, concerns, or ideas. If you have any problems, please use email as this is the only way I will know how to reach you.

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Recently changed in this version

high res icons for higher dpi devices


Comments and ratings for EMF Sensor
  • (69 stars)

    by Kristopher Koehler on 11/03/2013

    Works on my Droid Razr M. Test it on a speaker. It'll spike when I place it under my subwoofer, which has a magnet, being a speaker. However, it does not work accurately on my girlfriend's plain Droid Razr for some reason. Maybe it works better on NFC capable phones with Android Beam?

  • (69 stars)

    by Gary Kennedy on 21/12/2012

    I don't know what to set it to though :S

  • (69 stars)

    by Darrin Manella on 17/12/2012

    Good app, but for ghost hunting that requires readings in the 2 to 7 mg range, this app wont let you scan only in a particular range. When you set it to do so, it stills reads the earths field in the 500 mg range. Making it only good for readings of higher value. If you can somehow make it ignore higher readings this would be 5 stars for me.