Hobbes 256300 POEfinder Power Over Ethernet Status Finder is a new and easy to use tool for professional network administrators and installers in identifying the existence of PoE in a matter of a second! You simply connect the PoEfinder to an active network and the PoEfinder will light up, when it detects the voltage from the existing network . It will identify the type of PSE (power sourcing equipment) simultaneously. PoE ( Power over Ethernet ) technology is increasingly being used in many network equipments such as : IP phone, Access Points, Network Hubs, N etwork C ameras , and many other types of equipment .