ODM OTR 700-Q Quad SM & MM OTDR w/ Bluetooth Connect 850, 1300, 1310 and 1550nm   Optical Time Domain Reflectometer from Optical Design Manufacturing, Inc. (ODM).  Singlemode and Multimode unit with Quad wavelengths of 850nm, 1300nm, 1310nm and 1550nm.  Bluetooth compatibility with Android Bluetooth enabled smartphones and tablets.  Features: Event table with PASS/FAIL analysis Bi-directional averaging - unit automatically performs all necessary calculations Short event dead zones make both units ideal for short link installations Bluetooth compatibility for precision control with Android Bluetooth-enabled smartphones and tablets Schematic view