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 test: This cable tester provides highly accurate results, enabling safe and reliable testing of telephone and local area network cables, making it an essential tool for electricians. Easily identify the wire pair: Utilizes SmartTone technology to identify correct wires. When the remote end of the short-circuit cable is paired, the tone rhythm changes, allowing for easy and accurate wire identification. Intelligent function for accurate pairing: Use the SmartTone function with compatible analog audio generators to accurately identify and pair wires. This intelligent feature helps simplify the cable troubleshooting process. Unique tone, easy to identify: With SmartTone technology, hear up to 5 different 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 Only the above package content; other items are not included. Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement may vary by +/- 1-3 cm.