[Multifunctional network cable tester] Network-RJ45 tester can check the short circuit, crossover and idle status in cable.Suitable for CAT5 and CAT6 cable types.Find the cause of a network and save time and effort. [Poe-Test] PoE Ethernet tester can recognize the information of the standard and non-standard PoE device of DC5 - 60V, such as T standard, supply voltage, power supply polarity and mode. [Loop-Back Test and Power or Current or Voltage Test] The Ethernet cable tester can carry out the Loop-Back test, which will help you diagnose whether there is a problem with the loop.The NF488 CAT6 tester can test the electricity, the voltage and the power consumed by DC devices. [Lighting and LCD] This RJ45 network tester is flexible and very user -friendly.You can set the lighting time and the automatic switch -off time as you wish.LCD screen with backlight, you can see the data at a glance.The design with light on the top works well in a dark environment. [We help you] The Ethernet tester is ergonomically designed.The curved design on both sides of the PoE tester enables a better grip during use and is less likely to off.Very friendly! packing list:1 transmitter, 1 remote adapter, 1 8p adapter cable, 3 AA batteries (random appearance, don't accept the specified) Colour:As Shown Material:plastic Package Contents: 1 set x Inline Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.