EMF Meter - Magnetic Detector

EMF Meter turns your phone into a magnetic field meter. It reads your phone's built-in magnetometer, shows the total field in microtesla (µT) and lights five LEDs according to how much the field changes around you. HOW IT WORKS • Real sensor, real values: the reading comes straight from the magnetometer. Nothing is simulated, nothing is made up. • Calibrate in one tap to set an ambient reference, then watch the variation from that reference. • Five LEDs (green, light green, yellow, orange, red) show the relative intensity of the variation, with smooth, stable behaviour. • Total field (µT), variation, and maximum reached during a session, all on a single simple screen. USEFUL FOR • Finding magnets, speakers, motors and metal objects around you • Checking a magnetic case, mount or accessory • Comparing magnetic fields between rooms and places • Curious experiments and educational demos about the Earth's magnetic field • Ghost hunting and paranormal investigation: many investigators use an EMF meter on location FEATURES • Magnetometer-based magnetic field meter in µT, mG or G • Calibration with stability check • 5-LED detector with adjustable sensitivity and smoothing • Optional vibration and sound alerts, only when a real threshold is crossed • Sessions with duration, maximum, peaks and variation (keep screen on option) • Flashlight shortcut • Dark, realistic detector design; works offline; no account, no sign-up • No ads on the detector screen, never during a session PREMIUM (one-time purchase, no subscription) • Session history with charts, personal notes and names (e.g. "Bedroom") • CSV export • Fine sensitivity settings • Extra detector skins and detection sound packs • No ads at all You can also leave an optional tip to support development; it unlocks nothing. PRIVACY No location, camera or microphone access. No account. Your measurements stay on your phone. IMPORTANT EMF Meter uses your phone's magnetometer, so your phone must have one. The app measures variations of the magnetic field only: it does not measure electric fields, Wi-Fi, 5G or 50/60 Hz fields like a dedicated instrument. Accuracy depends on your device's sensor. Magnetic cases, metal objects and speakers can affect readings. This is an indicative, uncertified tool. It gives no medical or safety advice. About ghost hunting: some investigators believe that spirits disturb magnetic fields. This has never been scientifically proven; magnetic variations usually come from everyday sources such as wiring, appliances, speakers, magnets or phone movement. EMF Meter shows real, unmodified magnetic field changes and leaves the interpretation to you. It does not detect ghosts or spirits.

First release of EMF Meter! • Magnetic field meter in µT, mG or G, with a 5-LED detector • One-tap calibration with stability check • Sessions: duration, maximum and peaks • Optional vibration and sound alerts • Flashlight shortcut • Premium (one-time purchase): history with charts, notes and CSV export, detector skins, sound packs, no ads No account needed. Works offline.