NF‑488 LCD Ethernet POE Tester Automatic Identification POE Detector Checker Camera Powered Cable Power Tester 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