About Magnetic Field Meter
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...
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.
Previous Versions
Here you can find the changelog of Magnetic Field Meter since it was posted on our website on 2023-06-12 16:31:22.
The latest version is 2.7.5 and it was updated on 2026-10-15 22:39:34. See below the changes in each version.
Magnetic Field Meter version 2.7.2
Updated At: 2026-07-06
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
Magnetic Field Meter version 2.7.5
Updated At: 2026-07-06
Changes: [ Version 2.7.5 ]
- Remove all ads with a monthly or yearly subscription
- Upgraded magnetic-field detection engine for faster, steadier scanning
- Refreshed "Seamless Sky" unified interface
- Improved EMF recording and data view
- Latest SDK updates with stability and bug fixes
Magnetic Field Meter version 2.7.0
Updated At: 2026-03-12
Changes: [ Version 2.7.0 ]
- Light/Dark Mode Reflection
- Magnetic Field Measurement Core Engine Upgrade
- New RF Signal Meter Added
- New Wall Detector Added
- New Ghost Hunter Added
- New Compass Added
- New EMF Recorder Added
- Latest Android SDK Reflection and Stability
- UI/UX Upgrade
Magnetic Field Meter version 2.6.1
Updated At: 2025-11-05
Changes: [ Version 2.6.1 ]
- Magnetic field meter performance improvements
- Meter design upgrades
- Latest Android SDK update
- UI/UX upgrades for improved user experience
- Bug fixes
Magnetic Field Meter version 2.6.0
Updated At: 2025-09-12
Changes: [ Version 2.6.0 ]
- Improved magnetic field measurement functionality
- Upgraded meter design
- Updated Android SDK
- UI/UX improvements
- Expanded multilingual service
Magnetic Field Meter version 2.5.9
Updated At: 2025-07-25
Changes: [ Version 2.5.9 ]
- Improved magnetic field measurement function
- UI/UX improvement
- Multilingual service expansion
- Reflected and stabilized the latest Android SDK
- Bug fixes
Magnetic Field Meter version 2.5.8
Updated At: 2025-04-25
Changes: [ Version 2.5.8 ]
- App core engine upgrade
- Multilingual service expansion
- Reflection and stabilization of the latest Android SDK
- UI/UX design change,
- Function improvement
Magnetic Field Meter version 2.5.7
Updated At: 2025-01-11
Changes: [ Version 2.5.7 ]
- Reflection and stabilization of the latest Android SDK
- UI/UX improvement
- Function upgrade
Magnetic Field Meter version 2.5.6
Updated At: 2024-11-04
Changes: [ Version 2.5.6 ]
- Reflects the latest Android updates
- UI/UX improvements
- Bug fixes
Magnetic Field Meter version 2.5.5
Updated At: 2024-10-14
Changes: [ Version 2.5.5 ]
- Improved magnetic field measurement engine
- Improved UI/UX
- Improved sensitivity adjustment function
- Bug fixes