The Pro900 Digital Underground Cable Locator is a full-featured digital underground locator for contractors and maintenance personnel. Incorporating three different locating frequencies, the Pro900 tracks metallic cabling, including CATV, electrical, telephone, sprinkler, and lighting. The Pro900 transmits solid or intermittent signals that are easy to follow. The digital signal reception allows for crystal clear tone reception in most situations with either null or peak reception and features a KOSS stereo headset.