The JDSU TBERD 4000 FTTX single mode OTDR is a mini modular test platform with single mode FTTX module. Features a 7" High Visibility TFT Color Screen for indoor/Outdoor usage. Numerical keypad for number and text edition and Menu/Sub-menu shortcuts. This advanced field design supports up to 2 modules at a time and comes with 4 rugged molded bumpers. Click on the SPECIFICATIONS tab for complete technical specs.