Magnetic Field meter, EMF/RF, stud finder, ghost hunter — all-in-one.
About Magnetic Field Meter
Magnetic Field Meter is a tools app developed by SMARTWHO.
How many times has Magnetic Field Meter been downloaded?
Magnetic Field Meter has been downloaded 120 thousand times. In the last 30 days, the app was downloaded 4.6 thousand times.
What is the rating of Magnetic Field Meter?
Magnetic Field Meter is rated 3.95 out of 5 stars, based on 380 ratings.
Is Magnetic Field Meter free?
Magnetic Field Meter is free to download. The APK download size is 23.61 MB. The latest version available is 2.7.2. The last update was on May 27, 2026.
What are the requirements for Magnetic Field Meter?
Magnetic Field Meter requires Android 4.4+ or higher. The app has a content rating of Everyone. The app has been available on Google Play July 2022.
Description
Magnetic Field Meter turns your smartphone into a professional EMF detector, metal detector, RF signal analyzer, stud finder, ghost hunter, and digital compass — all in one app. It uses your device\'s built-in magnetometer to deliver accurate, real-time measurements with no extra hardware.
■ How Does It Detect Metal? Your phone\'s magnetometer measures the surrounding magnetic field in microtesla (μT). Ferrous metals — iron, steel, nickel, cobalt — distort the Earth\'s natural field (25–65 μT), and this app detects those distortions with vibration, sound, and color-coded visual feedback.
Note: Non-ferrous metals (gold, silver, copper, aluminum) do not affect magnetic fields and require professional electromagnetic induction equipment to detect.
■ Adaptive AI Detection Engine Most EMF apps use a fixed threshold that causes false alarms. Magnetic Field Meter\'s Guarded EMA algorithm continuously learns your environment\'s magnetic baseline and adjusts automatically — accurate indoors, outdoors, and near electronics. The sensitivity slider (−30 to +30) lets you fine-tune from strict to highly sensitive.
■ Real-Time Measurement & Visualization - Live readings in μT, mG (milligauss), and A/m - Circular gauge with 13-level color gradient (green to red) - Scrolling line chart tracking up to 1,000 data points - Delta (Δ) display showing change from calibrated baseline - Min / Max / Threshold statistics updated continuously
■ Detection Alerts - Haptic vibration on magnetic anomaly detection - Audible alarm that scales with field intensity - Color-coded status indicator across the UI - Status bar notification with 7 one-tap shortcuts
■ RF Signal Meter Monitor Wi-Fi and cellular signal strength in real time. View connection details — SSID, RSSI, frequency, link speed for Wi-Fi; operator, signal dBm, network type for cellular. A dual-line live chart plots both signals. Scan nearby Wi-Fi networks with signal bars.
■ Stud Finder Find metal studs, pipes, and rebar behind walls using the magnetometer. A 3-step on-screen guide walks you through: hold your phone flat, tap Start, and slide slowly. Color-coded sensitivity feedback shows detection strength in real time.
■ Ghost Hunter Mode Fun paranormal EMF detector for parties with a matrix-style dark UI, 5-level activity bars, EVP log driven by real sensor data, and DTMF audio tones that intensify with EMF readings. For entertainment only.
■ EMF Recorder Log magnetic field data with timestamps and GPS coordinates. Browse history and export as CSV for analysis.
■ Digital Compass Aviation-style 360° heading display with N/S/E/W directions and smooth sensor-driven rotation.
■ Who Uses This App? - Home inspectors — locate iron pipes, rebar, steel studs in walls - DIY enthusiasts — find studs before drilling, detect buried metal - Electricians & engineers — measure EMF near power lines - Network technicians — diagnose Wi-Fi and cellular coverage - Students & educators — hands-on magnetism experiments - Ghost hunting fans — entertain friends with paranormal mode
■ What Can & Cannot Be Detected ✓ Iron, steel, nickel, cobalt, magnets, electromagnetic sources, Wi-Fi/cellular signals ✗ Gold, silver, copper, aluminum, brass, lead (non-magnetic)
Dark & Light theme, 50+ languages, screen capture, baseline calibration, lightweight with no background drain.
Recent changes: [ Version 2.7.2 ] - Updated to the latest Android SDK - Improved magnetic field detection engine - Enhanced stability and performance - UI/UX improvements for a better experience - Bug fixes reported by users - Dark/Light theme support refined - 50+ languages supported
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It detected a magnetic field right away in109ut then after approx. a minute after detection there was no detection of it and reading change to 41 ut It was Strange that once detected It was gone ?
★★★★☆Adrian Ilie· Aug 6, 2023
It would be practical to save the position of the sensor on the display as in Lepsi. The sensor is at the top and the parameters are not visible. Center the content to the bottom. Do not put the ads at the top because they will be accessed. Thank you
★★★★★Jay Shree Ram· May 22, 2024
Fantastic!! I lost my magnetic arrow, and I was thinking that this app would be also fake as other apps I downloaded, but this has helped me so much! Thanks
★☆☆☆☆The Coffee Drinker· Jul 29, 2024
Says it doesn't collect data. Then won't let you use app unless you agree for it to collect all your data. Do not download unless you want them to get your data. They are lying on their Google Play Store app page.
★☆☆☆☆petr gorbounov· Jul 8, 2023
Total measured magnetic field in this app depends on the phone orientation. This is Jim nonsense!
★☆☆☆☆Mitch· May 21, 2025
Junk app. Unless you are looking for junk apps then it's 5 stars 🌟🌟🌟🌟🌟
★☆☆☆☆Tamara Rene· Mar 31, 2024
DO NOT DOWNLOAD THIS APP!!!!! I was trying to use it and a foreign language popped up. Immediately after that popped up another thing popped up asking for my location. I uninstalled this app so fast, faster than the flash could run. Hopefully no bug got to my phone before I deleted this app. But stay safe AND DON'T INSTALL THIS SCAM APP.
★☆☆☆☆ever green· Sep 8, 2023
Says no permissions needed, but then you install it and it wants permissions
Google Play Rankings for Magnetic Field Meter
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Technologies used by Magnetic Field Meter
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