Description: Ensure seamless network connections with this RJ45 and RJ11 Network Cable Tester. Designed for IT professionals and DIY enthusiasts, this device quickly identifies open circuits, short terminals, and straight-through or crossover wiring types. It operates with a single 9V PP3 battery (not included), making it a portable and essential tool for testing Ethernet and telephone cables with ease. Key Features : 1. Versatile Compatibility: Tests both RJ45 (Ethernet) and RJ11 (telephone) cables. 2. Efficient Cable Testing: Quickly detects open circuits, short terminals, straight-through, and crossover wiring. 3. User-Friendly Operation: Simple on/off switch with LED indicators for easy troubleshooting. 4. Ideal for IT Enthusiasts & Professionals: Perfect for network installers, technicians, and DIY users. 5. Portable & Lightweight: Compact design for easy carrying and storage. 6. Battery-Powered: Operates with a single 9V PP3 battery (not included).