The bench version of Ghost Com, built around your device magnetometer. The field probe shows the total magnetic field in microtesla, the learned ambient baseline, the difference between them, and the X, Y and Z axes separately - the raw readout the simpler meters on this site summarise into one number.
Around the probe sit a CRT field plot, a combined activity meter, a DOS-style diagnostics terminal and a session log you can export. Where the browser exposes only a compass heading, as on iPhone, the probe says so and uses heading instability instead; where there is no sensor at all, it runs on a labelled simulation.
The magnetic field broken into three directions relative to the phone: X across the screen, Y along it and Z through it. The total field is the combined length of the three, in microtesla.
Earth’s field is roughly 25 to 65 µT depending on where you are. Indoors, steel, wiring and electronics shift that by several microtesla, and a magnet nearby can push it far higher.
Safari exposes the compass heading, not the raw field. Ghost Com II then uses changes in the heading as its measure of disturbance and says so on the panel.
The EMF Meter is a simple handheld readout of one number. Ghost Com II is the full bench: raw axes, ambient baseline and difference, a field plot, a diagnostics terminal and a session log you can export.
No. It plots signals and logs events. Changes in the field come from metal, magnets, electrical equipment and the phone’s own movement.
This is an instrument and a sound tool, provided for entertainment and experiment. It describes what it measures and does not identify the cause of anything it shows.