Blog · September 28, 2026
Magnetic Locator vs a Metal Detector for Iron Pins
A metal detector screams at every can. A magnetic locator wants iron.
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Why this comes up
A metal detector screams at every can. A magnetic locator wants iron. Use the magnetic locator for pins. Leave the hobby detector for trash.
What to check on the map first
County GIS lines are assessment maps. They are not a survey, and a product will not redraw them.
Open Platbookmapper and choose the state. The directory sends you to the county viewer. Match the parcel ID before you trust a pin on an aerial photo.
A tool that matches the job
Shop the Magnetic locator when that is the job in front of you. Use the magnetic locator for pins. Leave the hobby detector for trash.
The limit
A flashlight or a laser measure helps you look. Neither one is a survey, and a bright beam does not move the line.
Match the parcel ID on the tax bill before you shop for the field kit.
Not a survey. County GIS and tax parcel maps are assessment and planning layers. They are not a substitute for a recorded plat, deed, or licensed survey.