WVA Posted February 22, 2016 Report Share Posted February 22, 2016 Discovery Electronics TF900 Pipe Trace Unit. $400.00 1. Special 73.5 khz Search Coil, that is attached to a TF900 Detector. 2. Control Box ie. Transmitter with color coded leads + Red - Black with Clips and a set of Instructions. This Sale DOES NOT include the "TF900 Detector", this sale ONLY Includes the "Pipe Trace Unit". The literature says the unit has a Depth range of 6'-10'and a trace distance from the Signal Injection Point of 200' to 300'. In my experience you would NEED a GOOD set of Head Phones to achieve the distances. I have used the unit in 2000 to trace 1 mile of 4" to 3" to 2.25" STEEL from 2' to 6'Deep. I was able to use the instructions to preform Depth measurements and they were accurate to within 95% of indicated values. pm me at wva063 at gmail dot com. Quote Link to comment Share on other sites More sharing options...
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