Your Device, must have a Magnetometer for this app to work properly! Test you device for Free, using this app: https://play.google.com/store/apps/details?id=com.VBE.SENSORTEST This app uses our already fantastic Ghost Box Hack app and adds the ability to Monitor EMF. Not only does the EMF Detection work in Graph and LED form. You can also use it to link to the Garbled Audio of the Sweep Rate. This means, if a spirit is present. The spirit must touch the device and speak into it to communicate, like a CB Radio. Thus eliminating any false communication as this is a two step verification, instead of just Garbled audio playing and listening for the answers a spirit may be giving you. EMF Detection is Manually adjustable as well as Auto Calibration featured. You can simply press the Blue Screen and hold it to calibrate for any angle, direction or EMF in the said Location. This allows you to investigate anywhere and not just locations without Electromagnetic Fields. The Auto Calibration will set 0 for the fields in any area. Then anything over the current fields will register as abnormal for the area. Thus, possible paranormal activity. There is also a Audible Beep, if you wish to only use the Beep to Detect any abnormal EMF. Thank you goes to our Fellow investigators whom have been with us from 2016. We have collected some amazing evidence over the years and we look forward to any new evidence you collect in our Group.