HiddenEye
Hidden cameras contain tiny lenses, circuits, and metal parts. These emit a magnetic field, even if very small. It's possible to find hidden devices by tracking this signature.
Understanding magnetic fields
Every electrically powered device creates a magnetic field, even if it's imperceptibly small. The sensors in your phone can measure this field. Hidden cameras also leave this kind of trace where they're hidden.
Things to pay attention to when scanning
- Remove your phone case
Thick cases or magnetic accessories can interfere with proper sensor function. - Location of the magnetic sensor
In most phones, the sensor is on the back, usually near the camera or top section. Bring this part close to objects when scanning. - Scan by touching
Magnetic scanning doesn't work "from a distance." Gently touch your phone to the suspicious surface or hold it very close. This increases the chance of detecting even weak fields. - Move slowly
Instead of moving quickly, progress slowly along the surface. The app will alert you when there's abnormal magnetic fluctuation.
Which values might be suspicious?
The magnetic sensor in your phone usually measures in "microTesla (µT)" units:
- 30–60 µT range: Normal, this is Earth's magnetic field range.
- 100 µT and above: There might be a strong electronic component, magnet, or cable nearby. Should be checked.
- 200 µT and above: Very likely there's a hidden electronic circuit nearby. Could be a camera or recording device.
Note: You can also see high values when getting very close to electrical appliances (like hair dryers). So it's important to make logical comparisons when evaluating suspicious objects.
How does HiddenEye help?
HiddenEye's Magnetic Scanner feature interprets these values for you. It alerts you when an abnormal magnetic field is measured. This makes it easier to test suspicious objects one by one.