Our Refurbished Digitrak® 5XD 19/12 kHz transmitter is compatible with the DigiTrak F5® locator used for horizontal directional drilling. The sonde features dual-frequency capability, pitch readings in 0.1%, and depth up to 65 ft. Specification:Compatible LocatorsDigiTrak F5®Pitch0.1%Depth65ftFrequency19.2kHz/12kHzBatteries2x C-cell Alkaline 1x SupercellLength15.0 inchWidth1.25 inch