Feature:1. [LCD Display] With LCD to display test information. The equipment is composed of a host and a remote terminal. The operation of the instrument is smooth and the design is user friendly.2. [Multifunctional] Has the functions of standard and nonstandard POE equipment testing, POE power online testing, network line to line testing, DC power testing, switch loop testing, etc.3. [Lighting Function] With lighting function, battery low voltage prompt function, it is a practical tool for maintenance engineers and technicians.4. [Durable Material] The POE tester is made of high quality ABS material, which is durable, safe, and can be used for a long time.5. [Widely Application] POE detector is widely used in the installation of weak current systems such as security monitoring, communication lines, and integrated wiring.Specification:Item Type: POE TesterModel: NF488Battery: 3 x AAA 1.5V (Battery Not Included)Material: ABSApplication: Line power testHostDisplay Screen128"64mm Dot Matrix, LCD With BacklightLanguage DisplayEnglish Key5 Function Keys + 1 Power KeyInterface Description4 RJ45, Two DC PortsDiagonal TestApplicable CableCAT5, CAT6Cable Sequence And Fault TestSupportNetwork Cable Shielded/UnshieldedTestable Differentiation (1 To 1 Alignment)Short Circuit PromptSupport1 To 1 AlignmentRJ45 Main Interface + Receiver Test 1 To 1 AlignmentSwitch AlignmentRJ45 Main Interface + Directly Connected To The SwitchTest LengthApprox. 600m / 1968.5ftPOE TestTest RangeDC5-60V Nonstandard Standard POE SwitchPower Supply Line Sequence ReminderSupportStandard DistinctionNonstandard, IEE? E 802.3af/atPD Output InterfaceSupport.Package List:1 x Host (Battery Not Included)1 x Remote Terminal1 x Clip1 x Connection Line2 x Adapter Line1 x Tool Bag1 x ManualNote:Do not perform related operations on communication lines during a thunderstorm to prevent thunderstruck and affect human safety