Network Cable Tester, Preciva Ethernet Test Tool, Lan RJ45 RJ11 cat5 cat5e cat6a, Powered via USB

👐 🔧【Widely & Easily Used】 Precision network cable tester suits for RJ45 Ethernet (Cat5/Cat5e/Cat6a/Cat7) and RJ11 telephone cables. Sequentially illuminates LEDs for clear wire mapping, instantly identifying open and short circuits, miswires, and reversed pairs. Perfect for both pros and beginners. 🛡️ ⚡【POE Anti-Burn & Fault Detection】Features exclusive 100M PoE Anti-Burn Protection, safely testing connected cables without fear of damage from Power over Ethernet voltages. 🔋🔋【Dual Power & Long-Distance Testing】LAN network cable tester support dual power supply: 9V battery (NOT INCLUDED) or powered via USB. The detachable Remote unit allows one-person testing over long distances, time & labor-saving. 🚦 🔄【3 Adjustable Speeds】In the automatic scan test state, short press the FUNC key once to flexibly switch Fast, Medium and Slow 3 test speeds. You can choose the best one according to your work needs. Improve your work efficiency. 💡💡【LED Work Light】You can use LED on the test to light up when the cable is already laid in a narrow dark space. Plus cable tester is detachable and used separately, which can be well applied to various usage scenarios. 🛠️ 📦【Durability & What's Included】Housed in a durable, drop-resistant casing to withstand tough job site conditions. Package Includes: 1 x Master Unit, 1 x Remote Unit, 1 x Storage Bag, 1 x User Manual. Note: 9V Battery is not included.