Enhanced durability: This cable tester is made of high-quality materials, designed for long-term use with excellent wear resistance, ensuring durability and reliability. Accurate and reliable testing: This cable tester provides highly accurate results, enabling safe and dependable testing of telephone and local area network cables, making it an essential tool for electricians and professionals. Easily identify wire pairs: Utilizes tone-based technology to help identify correct wires. When the remote end of a short-circuit cable is paired, the tone changes rhythm, allowing for easy and accurate wire identification. Intelligent pairing function: Use the analog o generator's tone function to accurately identify and pair wires, simplifying the cable troubleshooting process. Clear tone for easy identification: With the aid of tone technology, hear distinct tones through probes. Quickly identify and match specific wire pairs, saving time and effort during cable testing. Color: As shown Material: Plastic Package Contents: 1 set x Circuit Finder Note: Light reflection and different displays may cause slight variations in the color of the item in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.