User comments for CrowdMag
CrowdMag
- Free
- (No votes yet)
A free app for Android, by NOAAs National Geophysical Data Center.
CrowdMag is a free tool that uses your smartphone to measure the magnetic field and display the results as a graph or map. You can measure the field in units of nanotesla (nT; one nanotesla equals 10^−9 Tesla).CrowdMag is a tool for researchers...