Ridgid 96967 Navitrack II Locator navigates you to the locator of underground pipes quickly and easily. It also tracks energized lines With ease. The NaviTrack II Locator is made to locate Seesnake in-line transmittersremote transmitters (Sondes) and energized metallic lines. It provides unprecedented ease of use. Due to NaviTrack 2's advanced technologytraining time is greatly Reduced. This is for users that locate both remote transmitters and energized lines on a regular basisNaviTrack 2 is the fastesteasiestmost versatile locator. The NaviTrack II Locator maximizes the signal and the locate is complete. Verify the locate using the Large mapping Display. Depth measurement is continous and depth of greater than 15 feet can be read. Power source is 4 C-cell batteries With a battery life of approximately 16 hours.