Feature: 1. Scope of Application: Network cable tester is used to test your self regulating Ethernet jumpers to ensure that they are in working condition before connecting to your equipment 2. Practical and Reliable: By testing your cable, you can find the faulty short circuit, open wire, crossed wire pair and other wiring faults, so that your network can run smoothly 3. POE Anti Burning: Directly connected POE switch test, which can directly test the on off situation of cables such as crossing, short circuit, open circuit and open circuit when switches, routers, PCs and other equipment are on 4. Type of Cable: Testing RJ45 cable, RJ11 telephone cable and network cable, Ethernet Cat 5, Ethernet Cat 5e, Ethernet Cat 6, Ethernet Cat 7, RJ11 and RJ45, 4/8 core network cable and 2/4 core telephone cable 5. ABS Material: Network cable tester test tool is made of ABS material, which is wearable and durable. 2 x AAA batteries are required (without) Specification: Item Type: Network Cable Tester Product Material: ABS Battery: 2 x AAA Battery (without) Support Network Cable Type: 4/8 Core Network Cable, 2/4 Core Telephone Line Maximum Network Cable Length: >1000meters/1093.6yd Power Consumption: Maximum 20 Milliwatts Mode: Standard Mode and Fast Mode Hibernation: Automatic Hibernation Function. Package List: 1 x Network Cable Tester1 x User Manual Note: Shipped without battery