The MW910C is an OTDR with all the features of a full-sized instrument in a surprisingly compact and portable package. It is light weight -- only 13.7 kg but nothing has been sacrificed in performance. The maximum measurement range is 144 km, with a readout resolution down to 1 m. The wide dynamic range permits measurement of various types of losses, and the measured results are displayed digitally. Another key feature of the MW910C is pushbutton switching between 1310nm and 1550nm in the MH955 series plug-in units. The MW910C also offers three-point optical masking, a built-in printer, an option that allows operation with an external DC power supply, and many more features. The MW910C is an instrument that boasts a wide application range in fiber optics - from research and development to manufacture, maintenance and service. Features: Small, lightweight Long-distance measurement with 1-meter resolution Switchable between 1310nm and 1550nm Temperature-controlled laser diode light source Three-point optical masking Easy operation Memory for measurement setup Built-in thermal printer Built-in LED light source External DC operation GP-IB option