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 Tester Model: NF488 Battery: 3 x AAA 1.5V (Battery Not Included) Material: ABS Application: Line power test Host Display Screen 128"64mm Dot Matrix, LCD With Backlight Language Display English Key 5 Function Keys + 1 Power Key Interface Description 4 RJ45, Two DC Ports Diagonal Test Applicable Cable CAT5, CAT6 Cable Sequence And Fault Test Support Network Cable Shielded/Unshielded Testable Differentiation (1 To 1 Alignment) Short Circuit Prompt Support 1 To 1 Alignment RJ45 Main Interface + Receiver Test 1 To 1 Alignment Switch Alignment RJ45 Main Interface + Directly Connected To The Switch Test Length Approx. 600m / 1968.5ftPOE Test Test Range DC5-60V Nonstandard Standard POE Switch Power Supply Line Sequence Reminder Support Standard DistinctionNonstandard, IEE? E 802.3af/at PD Output Interface Support. Package List: 1 x Host (Battery Not Included)1 x Remote Terminal1 x Clip1 x Connection Line2 x Adapter Line1 x Tool Bag1 x Manual Note: Do not perform related operations on communication lines during a thunderstorm to prevent thunderstruck and affect human safety