Feature: 1. Widely Applicable: Remote cable tester can test various types of cables, such as RJ11, RJ45, USB, BNC, Cat5, Cat6 LAN cables and so on. Test installed cabling or patch cords. Test shielded (STP) or unshielded (UTP) LAN cables. Test the shielding on USB cables. 2. Sound Alert: The remote network cable tester is easy to use and allows you to test from 2 remote points. The buzzer provides audible notification of test results. Remote unit is stored on the main unit. Indicated faults include no connection, short, open, and crossover. 3. Terminator Design: Professional cable tester, BNC terminator 25/50 ohm indication. Straight or crossover indication. LEDs indicate wire and pin connections and faults. RJ11, RJ45 are equipped with 50u gold plating. 4. 4 Port: Detachable module for testing two remote points (maximum cable length: 600ft). Features four different test ports: RJ45, RJ11, USB and BNC for testing the most popular media. You can use this unit to check the condition of your cables before and after installation. 5. Compact And Portable: Portable handheld remote wire tester with ergonomic design. Powered by a 9V alkaline battery (not included), palm sized, with a soft faux leather carrying bag that is lightweight and easier to carry and use. 6. Applications: Simple one button test, quick test straight or crossover indication, great or low battery indication and automatic shutdown. Ideal for simply checking that the RJ45, RJ11 line (Ethernet or phone respectively), USB cable or BNC (old data cable) is configured correctly or if it needs to be rebuilt or replaced. Specification: Item Type: Remote Cable Tester Material: ABS Use: Remote Cable Testing Battery: 1 x 6F22 Battery, 9V (Shipped Without Battery) Gross Weight: Approx. 202g/7.1oz. Package List: 1 x Remote Cable Tester (Battery Not Included)1 x Accessory 1 x User Manual 1 x Storage Bag