Pipe & Cable Line Locators: An Introduction

Schonstedt’s cable and pipe detectors have been setting the standard for reliability and dependability in locating buried pipes, sewers, cable, lines and wire—quickly and easily.

Our cable and pipe detectors are extremely effective and versatile tools for locating utilities underground including cable TV lines, fiber optic lines, gas lines, irrigation lines, tracer wire, power lines, streetlight wiring, water lines and sewer lines.

Cable and pipe detectors have both a transmitter and a receiver. The transmitter induces an electric current that circulates through an object creating a magnetic field, which is then detected by the receiver.

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Schonstedt offers three models of pipe and cable line locators:

XTpc_sm Water line detector

The XTpc:

A Single Frequency Locator. Choose from two pre-set frequencies: 82 kHz or 33 kHz, depending on your need. In general, 82 kHz is useful in tracing gas and as a water line detector, while 33 kHz is a better choice for tracing electrical lines. The XTpc also offers one passive frequency (50 Hz or 60 Hz) along with sonde or passive cathodic capabilities.

The Most Portable Locator Option. Weighing about 3 pounds, the XTpc is the most portable locator of the pipe and cable line locators available. The transmitter fits in a shirt pocket while the receiver can be holstered for mobility, then easily extended for greater sensitivity.

The Lower Cost Alternative. The XTpc is priced at around $2,300. Click here for details and to buy online.

XTpc_sm pipe and cable locator equipment

The XTpc+:

 Multiple Frequency Locator. This versatile instrument is the most ergonomic, lightweight and compact multi-frequency pipe & cable locator on the market. The top of the line model offers three active frequencies (512 Hz, 33 kHz, 82 kHz), and a choice of one passive frequency (50 Hz or 60 Hz) and will detect any 512 Hz sonde or transmitted device.

A 512 Hz sonde accessory is available for purchase.

Quick, Easy & Precise — With a light-weight, compact and the most ergonomic receiver, the XTpc+ is a locating workhorse — versatile enough to handle any application across all industries.

Price. The XTpc+ is priced at around $2,800. Click here for details and to buy online.

Both the XTpc and the XTpc+ have direction arrows, signal strength and depth readouts, as well as “continuity” or “good connection” indications on the transmitter.

sewer locator

The XT512 Sonde & Camera Locator:

The new and revolutionary XT512 combines the portability of the holsterable XTpc package with the low frequency sonde and passive locating capability found in larger more cumbersome locators. With the XT512 you can locate and determine the depth of your sewer/pipe inspection camera or a small sonde such as the TM50910 from Schonstedt.

The XT512 is useful in locating blockages and obstructions in non metallic pipe.

Price. The XT512 is priced at around $1,500. Click here for details and to buy online.



MPC (Multi-Purpose Combo) Kit

Magnetic AND Pipe & Cable Locators in one handy kit!

The most portable, versatile, and accurate way to Find it All Underground. Click here for details and to buy online.

Pipe & Cable Locator
Comparison Chart


512 Hz


33 kHz

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82 kHz



512 Hz


33 kHz


82 kHz


Passive modes:

50 or 60 Hz


Passive Cathodic







Other Features:



Signal Strength


Directional Arrows


Good Circuit


Transmitter Power






Auto & Manual Gain