Brand‎GenericPower Source‎Battery PoweredColor‎GreyItem Dimensions LxWxH‎15.2 x 12.7 x 7.6 CentimetersMin. Operating Voltage‎9 VoltsNumber of Memory Sticks‎1Item model numberRJ45 and RJ11 Network Cable TesterItem Height‎3 InchesItem Width‎5 InchesCable Type‎EthernetAre Batteries Included‎No * The base unit of the cable tester can be connected via a network cable directly to a hub or switch to test wire connections.* Led's to show you exactly which wire is open or miss-wire on both remote and master unit. Old version has 4 Led's* Master and Remote unit are both included. Automatic scan mode, Rapidly Testing* Power switch is not a push button will not easily turn on and waste battery* Test the correct pin configuration of 10/100 Base-T 10Basc-2 Thin Ethernet cable Easy to verify cable continuity, open, short and miss-wire With remote kit, it can remotely test cable up to 1000 ft in length either on wall plate or patch panel.* Can test the grounding. Auto scan with 2 speeds for pin-out Indicators. A power switch is provided for saving Battery Power. 9 Volt Battery.