Mastech MS6811 Handheld Network Cable Tester Line Tracker UTP and STP wiring Test Meter Features: Test device used with UTP (Unshield Twisted Pair) and STP (Shield Twisted Pair) wiring Checks continuity and configuration of wiring with unshielded and shielded modular plugs Tests for open circuits, shorts, miswires, reversals, and split pairs Shield detection tests a cable's shield integrity Main unit and one remote allow one person to test T568A, T568B, 10Base-T, and Token Ring Debug quickly identifies which cable pairs have a specific wiring fault Battery low indicator Specifications: Cable Length: Minimum: 0.4m/Maximum: Over 200m Power: Main unit: 6 V/Remote unit: no battery required (battery is not included) Dimensions: 125*55*30mm Package Contents: 1 * MS6811 Network Cable Tester 1 * User manual 1 * Black bag The product does not include batteries (batteries need to be purchased locally) battery parameters (power supply: 6V (L1325/4LR44) 1pcs) 1. Orders proceed timely after the payment verification.