China handheld OTDR EX3210, 1310/1550nm, dynamic range 31/29dB, event dead zone <3m, attenuation dead zone <25m. EX3210 Handheld OTDR Features: One-key operation Shortcut key design, one- key setup Smart portable OTDR, 4¡ TFT LCD display Firm, durable, shock-proof, moisture-proof Large storage capacity, maximum store up to 800 measurement files Built-in lithium rechargeable battery, more than 10 hours working hours Support USB and network interface, more convenient to manage files EX3210 Handheld OTDR Applications: FTTX HFC (CATV) Optical fiber network