CST/berger 19-202SC MagnaTrak 202 Series Magnetic Locator with Erase Feature and Soft Case 100 hours of operation with alkaline batteries (6-AA) Find Ferrous objects from 6 inches to 15 feet below ground dependent on object size. Abilitiy to sense non-terminated power lines.Max. Operating Temperature (F): 120. Min. Operating Temperature (F): 0. Nominal Sensor Length: 20 inches Features CST Signal Erase Function Includes Soft Carrying Case