Schonstedt u-LOCATE Pipe & Cable Locator
Schonstedt Maggie Magnetic Locator
Schonstedt GA-52Cx Magnetic Locator
DML2000-XR Extended Range Magnetic Locator with soft case
SitePro Smart-Trak Magnetic Locator
FAQs About Tribrachs and Adapters
A magnetic locator detects buried ferrous (iron-containing) objects such as survey markers, manhole covers, valve boxes, and property pins. It’s a must-have tool for surveyors, utility workers, and construction crews when locating hidden metal objects underground.
No, magnetic locators only detect ferrous metals such as iron and steel. They won’t detect plastic, copper, brass, or aluminum. If you need to locate non-ferrous materials, you’ll need a utility locator that uses a signal transmitter and receiver.
Magnetic locators specifically detect ferrous metals like iron and steel and are ideal for pinpointing deep underground targets. Metal detectors detect a wider range of metals but aren’t as accurate for locating deeply buried ferrous objects like survey stakes or rebar.
Most professional-grade magnetic locators can detect objects as deep as 6 to 10 feet, depending on the object’s size and soil conditions. Larger ferrous objects, like manhole lids, are easier to detect at greater depths than small nails or stakes.
Yes. Most magnetic locators are weather-resistant or waterproof, making them suitable for use in rain, wet soil, or shallow water. Always check the model’s specifications for water resistance before submerging it.
Absolutely. Most magnetic locators are simple to operate with minimal training. They typically feature audio signals and visual indicators to help users locate targets easily. SiteSurv also offers training if needed.
The best magnetic locator for land surveyors depends on your needs, but top-rated models include the Schonstedt GA-52Cx, Schonstedt GA-92XTd, and SECO Magnetic Locator. The GA-52Cx is a rugged, analog favorite known for its reliability, simple operation, and ability to detect deeply buried iron targets like property pins, rebar, and valve boxes up to 10 feet underground. The GA-92XTd is a compact, foldable model with a digital display and one-handed operation, ideal for surveyors who value portability without sacrificing performance. The SECO magnetic locator offers solid sensitivity and durability at a more affordable price, making it a great choice for budget-conscious surveyors or those needing multiple units. Key features to consider when choosing a magnetic locator include detection depth, portability, battery life, display type (analog vs. digital), and overall budget. At SiteSurv USA, we stock all the trusted brands and models and can help you choose the right locator for your job, whether you're in the field daily or just need it occasionally.
They can detect iron-based utility components like valve boxes or steel pipes, but they cannot trace the full path of underground utilities. For that, a utility locator or pipe & cable locator is recommended.
When you pass over a ferrous object, the magnetic locator emits a stronger audio signal (often a higher pitch) and may show increased readings on a visual display. The signal gets louder or more intense as you get closer to the object.
Uncover with Confidence: Professional Magnetic Locators
In the land surveying and construction industries, finding what's hidden beneath the surface is a daily challenge. A professional magnetic locator is an essential tool for instantly finding buried ferrous metal objects, saving you valuable time and eliminating the costly guesswork of digging. From locating property corner pins (rebar) and survey markers to finding manhole covers, steel pipes, and valve boxes, a high-quality locator is the fastest way to get the job done right.
What is a Magnetic Locator? (And Why It's Not a Metal Detector)
Unlike a traditional metal detector that finds all types of metal, a magnetic locator is specifically designed to detect the magnetic field of ferromagnetic objects—meaning iron and steel. This is a crucial advantage for surveyors. It allows you to ignore aluminum cans, bottle caps, and other metallic trash, honing in directly on the iron survey pins and markers you need to find. By responding only to the magnetic field, these instruments can detect objects buried several feet deep.
Choosing the Right Locator for Your Work
While all magnetic locators share the same core purpose, different models offer features designed for specific needs and environments. The most popular types you'll find include:
- Standard Locators: These are the reliable workhorses of the industry. Known for their durability and simplicity, they provide clear audio tones that increase in pitch as you get closer to the target. They are perfect for most standard survey and utility locating tasks.
- Locators with Digital Displays: These advanced models provide a visual readout in addition to the audio signal. A digital display can show a numeric value for signal strength and a polarity indicator, helping you precisely pinpoint the center and orientation of an object.
- Locators with an Erase Feature: When working near interfering magnetic fields like a chain-link fence or metal building, this powerful feature allows you to temporarily erase the magnetic interference, making it possible to locate a nearby pin that would otherwise be undetectable.
Complete Your Field Toolkit
Once you've found your point, make sure you have everything else you need for a productive day in the field.
