🧲 Metal Detector & Magnetic Radar
Use your device's built-in magnetometer to detect magnetic field disturbances. Move your phone near metal objects to see the meter spike and hear the sonar frequency shift.
Detection Radar & Gauge
0.00
Microteslas (μT)
System Standby
Raw 3-Axis Vector (X/Y/Z)
X: 0.00
Y: 0.00
Z: 0.00
Controls & Calibration
About the Online Metal Detector
Modern smartphones are equipped with a built-in magnetometer, primarily used for compass navigation. When brought near ferromagnetic metals (like iron, steel, nickel), these metals distort the Earth's background magnetic field. This tool captures those microtesla (μT) disturbances, turning your phone into a sensitive metal finder.
💡 Pro Tip: Due to Apple's strict iOS sandbox restrictions, Safari currently blocks the underlying Generic Sensor API. This tool performs best on Android devices using Chrome or Edge.
Common Use Cases
- Home Finding: Locate dropped needles, screws, or keys hidden in carpets or dark corners.
- Construction & DIY: Detect hidden metal water pipes, rebars, or live electrical wires (electromagnetic fields) inside walls before drilling.
- Physics Education: Visually demonstrate the strength of a magnet and the X/Y/Z magnetic vector changes in 3D space to students.