Advanced Cable Tester and Probe Set with LED Display for Phone Lines Network Wiring SmartTone Circuit Finder Enhanced durability: This cable tester is made of high -quality materials, which can withstand long -term use and wear resistance to durability and reliability.<br> Accurate and reliable test: This cable tester is and highly accurate, ensuring the safe and reliable testing of telephone and local area network cables, making it an important tool for electricians and .<br> Easily identify the wire pair: Use SmartTone technology to identify the correct wires. When the remote end of the short -circuit cable is paired, the rhythm generated will change, so that the wire connection can be easily and accurately .<br> Intelligent function of accurate pairing: use the SmartTone function of the Pro3000 analog audio generator to accurately identify and pair the wire. Use this intelligent function to simplify the cable failure process.<br> Unique tone, easy to identify: With the help of SmartTone technology, you can hear 5 different tones through probes. Easily identify and match the exact wire pairs required, save time and energy during the cable test.<br> Colour:As Shown<br> Material:plastic<br> Package Contents:<br> 1 set x Circuit Finder<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.