Efficient Network Diagnostics:The RJ45 RJ11 Cable Lan Tester is an indispensable tool for anyone involved in network maintenance or troubleshooting. Designed to test the quality of Ethernet cables, this network analyzer is a must-have for IT professionals, network administrators, and home users alike. Versatile Network Testing:This network cable tester is not just a tool to monitor network performance; it's a comprehensive solution for diagnosing and resolving network issues. With its metric standard, it's compatible with a wide range of Ethernet cables, ensuring that you can test a variety of connections. User-Friendly Design:The RJ45 RJ11 Cable Lan Tester is not just about functionality; it's also about user-friendliness. Its compact and portable design makes it easy to carry around, ensuring that you can perform network scanning tools free wherever you are. Series: Network cable tester Functions: Illumination, Network Cable Testing, Telephone Cable Testing Design and Style: Compact and portable Usage and Purpose: Testing the quality of Ethernet cables Performance and Property: Accurate and reliable testing Power supply: 1x 9V battery (not included) Color: A:Yellow/B:Black Material: ABS Package Contents: 1 x Tester Only the above package content, other products are not included. 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.