Yw-751 Telephone Wire Tracker Ethernet Network Cable Tester Detector Line Finder. Versatile Cable Detection: Detects network lines, telephone lines, and various power cables with analog and digital signal support. Wireless Connection Type: Features wireless connection between emitter and receiver for flexible line tracking. IP40 Protection Level: Durable ABS shell with IP40 protection level suitable for industrial environments. 1 Year Warranty Coverage: Includes a comprehensive 1-year warranty for mechanical defects and parts. Compact and Lightweight: Emitter weighs about 68g and receiver about 90g for easy portability. Clear Audio Feedback: Receiver provides prompt sound to help locate target cables accurately. Wide Operating Temperature: Operates effectively in temperatures ranging from 0 to 40 degrees Celsius. Dual Battery Power Supply: Powered by 2*9V square batteries for reliable performance.