Schonstedt TMS-001-SF-8 TraceMaster II Underground Pipe and Cable Locator is easy to use - Simple operation: 2 buttons , 2 knobs. No transmitter settings required. Schonstedt TMS-001-SF-8 TraceMaster II is the professional's choice for locating pipe and cable, but you don't have to be a pro to use it. So even if you only have an occasional need to find pipe and cable underground, keep a Schonstedt TraceMaster in your kit. Schonstedt's magnetic locators have been setting the standards for reliability and dependability for nearly half a century. Schonstedt locators are designed to withstand the rigors of daily on-site usage and a wide range of environmental conditions. The TMS-001-SF-8 TraceMaster II is backed with a 3-year warranty.