EXFO MAX-730C-SM3 1310/1550/1625nm 39/38/39dB OTDR with Oi (iOLM & OTDR SW). – The EXFO MaxTester 730C (MAX-730C) is a fully featured, entry-level, dedicated OTDR with tablet-inspired design, suitable for metro and optimized to test through optical splitters, for seamless end-to-end FTTH characterization and troubleshooting.