I'm exploring the possibility of creating a new product for use in Paranormal investigation. I found self contained integrated circuit chip which has a 1uV resolution in a 4 input, serial output digital to analog converter. I'm toying with the idea of using this chip in conjunction with a Bluetooth transmitter (also available relatively cheap) to provide a multi input wireless EMF sensing grid. These sensing grids could then be distributed across a property and all tie back into a single Bluetooth USB receiver. This could essentially give a real-time emf array which could cover a 150ft x 150ft property with ease. Being that its 4 input it could monitor 2 magnetic and 2 electrostatic probes each. To give a limitless array of tri-field detection.

If there are other electronic engineers out there interested on merging efforts please let me know. I'm looking for others to join in this little venture.