Georg Fischer Ltd
Radiodetection Pipe and Cable Locators

CAT4 & Genny4

The CAT4 and Genny4 is Radiodetection's most advanced cable avoidance tool to date designed to assist in avoiding buried cables and pipes during excavation.

The CAT4 is an advanced robust cable avoidance tool delivering a reliable performance from a powerful digital processing platform that can detect passive signals naturally radiating from metallic services or the Genny4 can be used to apply an active signal that the CAT4 can detect.

CAT4's Dynamic Overload Protection feature automatically filters out high levels of interference, allowing operators to continue working even in electrically noisy areas such as substations and under high-voltage cables - and requires no input from operator.

The Genny4 provides a simultaneous duel frequency signal output. Alongside the familiar 33Hz signal for general purpose locates, the Genny4 transmits a specialised Small Diameter Locate frequency which facilitates location of utilities such as telecoms and street lighting. The Genny4 has an accessory storage tray which holds the supplied Direct Connection Lead, Earth Stake and Neodymium Magnet.

CAT4 Operating Modes

Avoidance Mode speeds the process of pre-dig scanning by searching for Power, Radio and Genny signals simultaneously. CAT4 Avoidance Mode offers fully controllable responses, allowing operators to rapidly pinpoint a buried utility and trace it across an area. Real Sound audio enables operators to maximise locate speed whilst maintaining safety.

Genny Mode detects the signals transmitted by the Genny4, with on-demand estimation of the depth of the depth of buried utilities.

Power Mode detects electromagnetic fields generated by loaded power cables

Radio Mode detects long-range radio signals as they travel along buried cables and pipes.

The CAT4 and Genny4 is normally supplied as a kit which includes the CAT4 Receiver, Genny4 Transmitter, 4" (100mm) Genny Signal Clamp and a Soft Carry Bag. Other accessories available include:

Genny Signal Clamp: Used to apply a Genny signal to a specific cable or pipe. Particularly useful where diect connection is not possible, or on live cables when these cannot be de-energised. Available in 2" (50mm) or 4" (100mm) diameters.

Sondes: Self-contained signal transmitters which can be attached to a push-rod to allow detection and tracing of non-metallic pipes or ducts.

Live Plug and Cable Connectors: Connects the Genny4 signals directly onto power distribution systems without needing to isolate the supply first.

FlexiTrace: Highly flexible 50m pushrod with integrated sonde. The rod can be energised by the Genny and inserted into pipes as small as 12mm. It is used with a CAT to find and trace small diameter plastic pipes.


Georg Fischer Ltd offers complementary training for one person per locator purchased. Our training is carried out by suitably qualified operators to a level to ensure correct operation of the locator.

The courses are structured to suit different levels of practical experience and cover the knowledge and skills required to operate the equipment correctly.

As a general rule the complementary training is available for 3 months from the date of purchase. Refresher training and/or new employee training for pipe and cable locators will be at a chargeable cost.

Download: RD Locator Training Request Form

Download: CAT Manager