Pipe/Cable/Sonde Locator, Active/Passive Modes, Length 11 1/2 In, Width 4 1/2 In, Height 30 1/2 In, Power Source 6 C Batteries, Transmitter Frequency Sonde 512Hz and 33kHz, Live Utility 50/60 Hz, Features Weather Proof Membrane Buttons, Speaker, Low Battery Warning, Manual Gain Control, Includes Batteries, Carrying Case, Operators Manual RestrictionsNote: See page 791 for 1DPH2 Mapping Display Utility Locator. NaviTrack Pipe and Utility Locating EquipmentPipe/Cable/Sonde LocatorLocates inline transmitters, remote transmitters (sondes), and energized direct buried cables. Push-button readings up to 15 ft. depending on soil conditions and signal strength. Features weatherproof membrane buttons, speaker, low battery warning, and manual gain control.