Fault Finding Equipment

RD7100 Precision Locator

Accurately locating and marking buried assets ensures minimum downtime during repair or maintenance activities.

RD7100, our industry-specific locator range, is built on this pedigree for performance, quality and durability. Containing our most advanced locating technologies each model is optimized for the challenges of locating a particular utility. Integrated GPS and usage logging options automatically generate data for work reports, or in-house quality and safety audits, to promote best working practices.

The Radiodetction 7100 is the top of the line locating and fault finding systems on the market and offer extraordinary features at a fair price. They possess the capability to find up to a 2 meg fault, and can both locate and fault find at the same time using one simple hookup.

The RD 7100 transmitters have a volt ohm meter to test all wires, saving time for the work crew and helping to restore service in a timely manner.

The RD 7100 receiver has an arrow locator which initially points to the fault and reverses once the fault has been passed. A compass works to orient the blades of the receiver to give the direction of your locate for either cables or pipes. The RD receiver also indicates if there are multiple faults down the line. Up to five antennas can be used, increasing the accuracy of your locate and fault find.

A simultaneous readout is provided for both depth and current. The current readout comes directly from the transmitter, not the signal strength, in order to help with bleed over effect. Depths of up to 20’ are provided in real time within a margin of 5%. The addition of arrows are used to simplify locates, along with the Guidance mode feature- our version of cruise control. The Wide Peak mode can be used in finding very deep cables.

The Radiodetection 7100 locator range has built-in safety features including:

  • Visual and audio warnings of shallow cables.

  • Dynamic overload protection which filters out any high KV lines in the area.

  • Power filters to establish if a single large power signal stems from one or multiple sources.

  • Peak antenna to identify lines leading both to and from a transmitter.

  • Enhanced self-test.

Devices have ingress protection IP65 for tough environments. The eCert calibration system enables remote calibration of equipment without any downtime. All devices come with a 3-year warranty, free on-site training, and free use of a loaner device for the system’s lifetime. C&S Solutions is the factory authorized repair and service facility for Radiodetection devices.

Five reasons to purchase an RD7100

1. Guidance Mode

The RD7100 rapidly traces the path of a target utility using proportional arrows and directional indicators.

2. Locate over longer distances

90V signal output and automatic impedance matching.

3. Light weight and ergonomic design

The Radio Detection RD7100 is designed for comfortable use.

4. Simultaneous depth and current readout

Consistency of depth and current measurements gives you confidence that the correct line is being followed.

5. Dynamic Overload Protection

The RD7100 locator filters out interference, enabling use in electrically noisy environments such as substations areas or overhead power lines.

Mark and protect your underground assets

Accurately marking buried assets ensures minimum downtime during repair or maintenance activities. It also prevents damage which can be costly for both you and your customers.

RD7100 offers the power of Radiodetection's most advanced locating technologies, with each model optimized for a single industry. Users benefit from the simplicity of having menu options and capabilities matched to their requirements.

Guidance Mode

This enables the path of a single utility to be found and traced quickly. Directional information is displayed alongside proportional distance arrows to help find the utility and then keep you on its path. The simultaneous display of depth and current information gives confidence the correct utility is being traced even in congested networks. For rough or uneven terrain differentiated audio tones can free the user to concentrate on potential hazards.

Peak+ Mode – Speed Combined With Accuracy

Peak+ mode allows you to add either Guidance or Null arrows to the accuracy of Peak mode.

  • Adding Guidance gets you to the peak position faster.
  • Adding Null to Peak lets you check for the distortion caused by other utilities, spurs or interference.

Powerful Locating at Your Fingertips

We've kept our user interface consistent with our previous precision locators to reduce retraining costs.

Ensuring best practice

In the field of damage prevention, where the human and financial cost of a strike can be substantial, ensuring adherence to best working practices is essential. Observing behaviors and preventing poor habits developing is difficult. The RD7100 comes with a number of features designed to facilitate the observance of best practice and to ensure product integrity before use.

Automatic Usage-Logging with GPS Positioning

When equipped with GPS, RD7100 locators automatically capture key locate parameters, every second, providing a comprehensive picture of individual locates and allowing you to assess usage patterns over extended periods. The data generated can be used to ensure adherence to best practice, or to identify training needs before poor work habits develop. Additionally, the information can be used for internal audits or shared with stakeholders to enable process improvements, and to evidence task completion. Usage can be exported in multiple file formats – for example, KML Maps to confirm where and when the work was performed.

Ecert™ – Remote calibration Without Downtime

Verify and certify the calibration of your locator over the internet using the RD Manager™ PC software package without returning the unit to a service center. You can be confident that the RD7100 is ready for action whenever you are.


Choose to automatically enforce maintenance or lease schedules by providing a 30 day countdown before the calibration certificate expires.

Support When You Need It

The RD7100 is backed with an industry leading 3 year warranty on registration. Our global sales and service network delivers comprehensive technical support and training tailored to your needs

Optimized precision for your industry All our RD7100 locators come with Radiodetection's pioneering features, such as Strike Alert , Compass Orientation and depth measurement as standard. Each model of RD7100 also benefits from being optimized for a specific industry:

Construction: RD7100SL

Accurate and simple to use, the RD7100SL comes with four active and two passive frequencies that cover the majority of site locating tasks. A rugged, IP65 rated casing along with a high contrast screen make it suitable for use in all weather conditions.

Water and Pipeline: RD7100DL(G)

With four sonde frequencies, the RD7100DL can be used to trace deep pipes made from a variety of materials including: cast iron, clay, fiber, concrete and brick. Additionally, it can be used to locate Cathodic Protection System (CPS) signals applied to pipelines.

Power : RD7100PL(G)

Designed for use in dense infrastructures where signals from high voltage equipment and cables can be confusing or overwhelming. Dynamic Overload Protection reduces the effect of interference, while Power Filters can be used to establish if a single large power signal comes from one source or from the presence of multiple cables.

Telecom : RD7100TL(G)

RD7100TL features higher frequencies to locate high impedance cables amongst large bundled pairs and sonde frequencies for duct and conduit tracing. Higher frequencies can also be used to trace sheathed domestic cables without grounding connections. Cable sheath faults can be located to within 4" (10cm) using 8kHz Fault Find mode with a Radiodetection A-Frame