OT-5000 is a 5-in-1 delux optical test equipment designed for network service providers, network installers and CATV operators.It is used for fiber cables installation, maintenance and emergency restoration.It combines a stable light source, a calibrated optical power meter, a full-duplex talk set ,a visual fault loactor ,a SD memory card and it comes with a high q uality color graphic LCD. OT-5000 provides fully automated loop and bidirection optical loss test in 15 seconds and fiber length measurement. It also provides traditional functions with stablized light source, optical power meter and loss tester. SD memory card can store over 2,500 data. There’s an application program provided as an accessory for data management,analying and printing for reporting document.