Main Function : Detecting PoE voltage, current, power, PSE standards Power supply modes, Verify RJ45 cables | 1. Three scan modes selectable: AC filter mode/ Analog mode/ PoE mode | 2. Detect AC voltage presence (50V-1000V). Test physical status for STP, UTP lan cable. | 3. Measure cable length accurately , the range is 200m. | 4. Hub blink for locating network port by the flashing port light on Hub / Switch. Available to 10M/100M/1000M Hub/ switch. | 5. PoE testing : identify which pins are providing power and detect how much voltage, identify which the type of PSE (at/af standard)