RD8100 is our most advanced range of high-precision cable locators, and builds on over 40 years of pedigree to deliver performance, quality and durability. Containing a unique arrangement of 5 custom-manufactured, precision-ground antennas, it allows you to choose the best method to locate specific pipes and cables. Read our guide to cable and pipe locators to understand more about how locators work.


Key features

  • Detect all commonly used RF utility markers with automatic depth estimation for faster, accurate surveys
  • RD Map™ cell-phone app for the real time* creation of detailed buried utility maps
  • Combined mode to scan simultaneously for cables, pipes and RF markers reducing surveying time
  • Current Direction™ to help identify the target amongst a number of parallel utilities by applying a specialized CD signal
  • Simultaneous depth and current readings, enabling faster surveys
  • Bluetooth connectivity as standard to interface to external devices and GIS systems
  • Integrated GPS option provides an easy interface to mapping databases and survey validation
  • Power Filters™ can pinpoint and discriminate between multiple power cables by exploiting their harmonic properties
  • High contrast screen and weatherproof (IP65) construction for operation in almost any environment
  • Light weight and ergonomic design allow prolonged usage
  • Screen and operations common across Radiodetection’s Precision Locator ranges minimizing changes in working practice and re-training needs ● Integral logging system records significant locate parameters every second (including positional data for GPS models) storing up to 1 year of typical usage data
  • USB connectivity to quickly retrieve internal logs or to perform setup, validate or upgrade operations using the RD Manager™ PC software
  • Built-in Li-Ion rechargeable batteries as standard for extended battery life and cost effective operation


Sensitivity 6E-15 Tesla 5µA at 1 meter (33kHz)
Dynamic range 140dB rms/√Hz
Selectivity 120dB/Hz
Depth measurement precision ± 3%
Locate accuracy ± 5% of depth
Active Locate filter bandwidth ± 3Hz, 0 < 1kHz
± 10Hz, ≥ 1kHz
Maximum depth readout Metric: Cable / Pipe: 30m Sonde: 19.5m 
Imperial: Cable / Pipe: 98' Sonde: 64'
Weight With Lithium-Ion battery pack fitted: 1.8kg (4.0lb)
With D-cell alkaline batteries fitted: 1.9kg (4.2lb)
Ingress Protection rating IP65
Protected against dust ingress and jets of water5 applied from any direction
Operating temperature  -20°C to 50°C (-4°F to 122°F)


RD8100 Datasheet