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 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.