Description
The Extech 480826 Triple Axis EMF Tester measures low-frequency magnetic fields. It is useful for documenting ordinary environmental conditions around electrical equipment during a site visit.
Verified features
- X, Y, and Z measurement axes.
- 30–300 Hz frequency bandwidth, covering 60 Hz power-frequency fields.
- Readings in milligauss or microtesla.
- A separate sensor on a 3-foot cable.
- One 9V battery; the manufacturer lists a battery and hard carrying case with the instrument.
What the readings mean
A changing reading documents a magnetic field at the sensor. It does not identify its source or establish paranormal activity. Note nearby appliances, lighting, and other electrical equipment before interpreting a change.
This model is not a radio-frequency meter for Wi-Fi or cellular signals, an electric-field meter, or a thermal camera. Choose a different instrument if those are the measurements you need.
Practical use for beginners
Start with a written baseline: record the location, time, sensor position, and equipment operating nearby. Repeat readings in the same position rather than treating every change as a new event. Keep your own electronics and the sensor cable position consistent when comparing measurements.
Buying considerations
Choose this model when low-frequency magnetic readings and a separate probe fit your documentation method. A simpler meter may be enough for occasional baseline checks. Confirm model 480826, package contents, and seller terms on Amazon before ordering. HauntGears links to an external seller; checkout and fulfillment take place on Amazon.
The instrument is for measurement, not for deciding whether wiring is safe or diagnosing health effects. Follow the manufacturer instructions and avoid approaching exposed electrical equipment to take a reading.
Common questions
Does it detect ghosts?
No. It measures physical magnetic fields within its specified frequency range; a reading does not prove a paranormal cause.
Will it measure Wi-Fi?
No. Its specified bandwidth is 30–300 Hz. Wi-Fi and other radio-frequency measurements require a suitable RF meter.
Compare measurement types in our EMF meter buying guide.
Manufacturer specifications and instructions
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