Get the most advanced EMF app in the store. Impress your friends or colleagues with this cutting edge technology.

Convert your iPhone into an EMF Meter (electromagnetic field tester) using the internal compass hardware. With this app, you can view the raw data of the magnetic fields around you on a digital display.

Record your findings with the new feature "Readings Log" and easily send them via in-app email. This app is perfect for scientists, teachers, students, engineers, and even ghost hunters, as it detects magnetic fields of all types.

Now available for free on iPhone 3G(S) and iPhone (4), this app offers more features than its competition. It allows you to detect the strength of magnetic force fields on all three axes (x, y, z), with measurements calculated in microteslas (µT). You can also pause readings for experiments and record them with a time and date stamp.

The latest version 2.2 includes the ability to save log locations, which can be viewed on a map. This feature was added based on a request from a geological survey group. Version 2.0 introduced settings such as auto sleep disable/enable, reading calibration, threshold for readings, alarm for readings, and reading interval/timer, giving you full control of sensor and data logging.

Please note that the observed magnitude is the strength or size of the magnetic vector in microteslas (µT). It's important to observe and respect the iPhone user manual and warranty if you intend to use your iPhone as a scientific device. The developer is not responsible for any damage caused to your device.