NF-488 POE Tester Inline Tester Power Over Ethernet Voltage Current Tester Test for POE Testing, Network Cable Continuity Checking, DC Power & Switch Loop-Back Test POE Detector

["· Test the information of the standard PoE device, such as af t standard, power supply voltage, power supply polarity and mode.","· Identify the supply voltage, power supply polarity and mode of non-standard PoE devices.","· Check the short circuit, crossover and open circuit status in the network cable.","· Test the current, voltage and power consumed by DC appliances."]