DCD Design introduced detectable rod in 2004 to permit contractors to trace underground conduit or pipe without digging. Detectable Duct Rodders are electrically conductive from end to end so that operators with standard pipe locating equipment can plug their transmitter into the Rodder’s junction box and use their locator to follow the signal transmitted down the rod.
 

Note: Because the Detectable Rod is conductive, it should NEVER be used in situations where live electrical current could be encountered. Take the proper precautions with your rod in an unknown duct!
Detectable Duct Rod is available in 5/16″ and 7/16″ diameters, in the same cages as our standard Rodders, in a range of lengths to suit your jobsite. Keep in mind that the measurable signal will degrade with distance and depth. The available lengths of Detectable Rodders reflects this. All the standard duct rod accessories will fit the Detectable Rod, making them even more useful.

The appropriate rod diameter is based upon several factors:
– the diameter of duct it is to be pushed through;
– the distance it is to be pushed;
– the number and tightness of the bends in the ducting.
As the rod is pushed through the ductwork, it will tend to deflect and form “sine waves” as it rests against the walls of the duct. Too small a rod diameter will have excessive contact and friction on the walls. Too large a diameter will see friction in the tighter bends. See our catalog pages for guidance.