Feature:1. Automatic Identification: This network POE tester has automatic identification for POE voltage(af or at standard). Power supply polarity jumper voltage test ranges from 0 to 60V.2. Inline Testing: POE tester can do inline test the realtime power consumed by the PD device in a POE power supply system. This section describes how to test the standard POE device, such as the standard, power voltage, power polarity, and mode.3. Test Short Circuit and Open Circuit: POE tester can test short circuit, open circuit, crossing network cable, can test shielded cable.4. Switch Line Connecting: If the switch is steady on when you line the switch for POE checker, the line is fluent. If the switch is not on, the line is blocked.5. Multi Function: POE checker can test DC power, test the voltage, current and power between the power adapter and the electrical equipment.Specification:Item Type: POE TesterMaterial: ABSBatteries: AAA Batteries x 3 (Shipped Without Batteries)Interface Description: 4 RJ45 Ports, 2 DC PortsLine TestApplicable Cable Lines: CAT5, CAT6Cable Line Sequence and Fault Test: YesNetwork Cable Shielded or Unshielded: Can Be Tested to Distinguish (1 to 1 Lines)Short Circuit Prompt: Yes1 to 1 Lines: RJ45 Main Interface and Receive Line Test and 1 to 1 LinesSwitch to Line: RJ45 Main Interface and Direct Connection to The SwitchTest Length: 600m(1967ft)POE TestTest Range: DC5-60V POE SwitchPower Supply Line Sequence Prompt: YesStandard Distinction: 802.3af/AtPD Output Interface: YesPower Test Range: 0-18WPower TestVoltage Test Range: DC0-60VCurrent Test Range: 0-3APower Test Range: 0-180WMaximum Working Current: 80mALoop Test: 10M, 100M SwitchRemote AdapterLine Interface: RJ45Input Voltage Protection: DC48V 5mA.Package List:1 x Tester1 x Test Interface1 x Crocodile Clip Cable1 x CAT5 Cable1 x CAT6 Cable1 x DC Connection Cable1 x Storage Bag1 x Instruction Manual