Viavi formerly JDS Uniphase Corporation TB2K-GOV-2WMA-P5Ki T-BERD 2000 Medium Range Singlemode 1310/1550 nm OTDR package.- Handheld platform w/ 5 touchscreen high res color display compatible with all fiber modules- 37/35 dB @ 1310/1550nm Singlemode OTDR, UPC Connector with SC, LC and ST adapters