Description

Metal Detector - EMF Scanner transforms your Android smartphone into a convenient tool for detecting magnetic-field changes and nearby ferromagnetic metals. Using your device’s built-in magnetometer sensor, it provides real-time measurements in microtesla (μT) while making scanning simple and interactive. The app features a clear gauge, live signal history graph, X, Y, and Z-axis readings, sound alerts, and vibration feedback. Adjustable sensitivity from 5% to 100% lets users adapt the scanner to different environments and detection needs. Auto and manual calibration options also help establish a suitable magnetic-field baseline before scanning.

The app can be useful for locating iron nails, screws, steel pipes, rebar, tools, keys, and other magnetic objects around homes, workshops, vehicles, and construction areas. Users can slowly move their phone near a surface and watch for changes in the magnetic-field reading, with stronger signals indicating greater magnetic disturbance. Its practical applications include DIY projects, home inspections, educational demonstrations, treasure-hunting activities, and finding misplaced metal objects. However, detection depends on the smartphone’s magnetometer, and the app is primarily designed for ferromagnetic metals such as iron, steel, nickel, and cobalt. Non-magnetic metals such as aluminum, copper, and gold may not produce a detectable response.