1,Power over Ethernet 2,Time set by SNTP 3, Software configuration 4, CE marked, RoHS 5, Good quality with competitive price Technical SpecificationsAccuracy+/- approximately 200 millisecondsOperating Temperature-10°Cto 60°CViewing Distance50 metersOperating Humidity90% maximum, non-condensingInstallation optionsSurface, Pendant, CantileverCertificationsCE/FC/RoHSPower SupplyIEEE 802.3af ...