Network Cable Tester, Preciva Ethernet Wire Test Tool, Lan RJ45 RJ11 Cable Testing, 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.