RD5100™ Precision Locator

This is a discontinued product. Check out the new NEW RD7200


Tracing buried pipes and cables made easier.

The Radiodetection RD5100 Series has been designed to specifically addressing the concerns and challenges of users such as those in the Water and Gas Industries locating buried pipes and cables. Ease of use is at the heart of the products, coupled with the accuracy, repeatability and reliability you have come to expect from Radiodetection’s locator products.

Avoid Underground Utilities

Tracing buried pipes and cables, whether to locate faults or to avoid utilities during excavation work, can present major difficulties. This can be made even worse in cases where a pipe has rubber seals, insulators or even gaps between sections. The RD5100 utility line locator equipment can help overcome these issues and avoid costly repairs, delays, and in some instances, personal injury.

Guidance Mode

Guidance Mode allows you to rapidly follow the path of a buried utility. Intuitive proportional arrows, a directional ‘needle’ and differentiated audio tones guide you along the target pipe or cable.


Depth readings are only indicated when the RD5100 locator is correctly oriented above the target cable, pipe, or sonde. The RD5100H2O and RD5100S are available in Imperial and Metric versions, while the RD5100H2O+ model can be customized using the menu to work in either units of measure.


Visually indicates orientation of the target cables.

  • Allows the operator to quickly and easily follow the target line.
  • Maximizes depth measurement accuracy by ensuring the locator is correctly with the target line.

Dynamic Overload Protection

Extends the RD5100's locate capability into areas where other products fail.

  • Automatically filters out large and unwanted signals while ensuring accurate location of the target utility.
  • Particularly useful in electrically noisy environments such as power sub stations or near overhead high-voltage cables.

Limited Time Offers

  • Offer 1: Trade in any non-Radiodetection locator and receive 7% off on a new RD7100 or RD8100 locator kit.
  • Offer 2: Trade in any Radiodetection locator and receive 12% off of a new RD7100 or RD8100 locator kit.

Call us at 513-922-7444 to take advantage of the offer or for more information.


Audio Tones

When in Guidance Mode a continuous tone to the left of the target and an intermittent tone to the right helps guide you towards the target.

Depth and Current

A simultaneous read-out on active lines for confidence you are following the correct target.

Li-Ion rechargeable battery options

Lithium-Ion rechargeable battery options for both locator and transmitter provide extended runtime with reduced running costs. As standard for RD51000H20 and its 1W transmitter.


iLOC is an advanced Bluetooth link between the RD5100H20+ locator and the 10W transmitter, allowing the operator to control the transmitter remotely. Less time walking and more time locating.

Current Direction (4k CD, H20+ only)

Current Direction is a powerful tool that augments the capabilities of pipe and cable locators to help operators pick out their target line from others nearby. Using fundamental properties of electromagnetism, 4K CD allows you to locate your utility quickly, and eliminate wasted time following false trails.