Specification :

FST-OT4000 handheld lightweight and convenience for carrying Advanced anti-reflective TFT LCD, visible clearly in field 1.6m extra-short event dead zone 0.25m high resolution, sampling points Fast auto measurement, one-button operating

FST OTDR-4000 series handheld optical time domain reflectometry ( OTDR) is the latest FTTx optical fiber cable-based test instruments. Integrated machining, elegant appearance, splash design, small size, light weight, durable. Built-in three test wavelengths and visual fault locator ( VFL) function is tailored FTTx network testing a new product.
Specification
Model FST-OT2000 FST-OT4000 FST-OT5000 FST-OT6000
wav elength 1310nm/ 1550nm
+ 20nm 1310nm/ 1550nm
+ 20nm 1550nm/ 1625nm
+ 20nm 1310nm/ 1550nm/ 1490nm
+ 20nm

Fiber Type Single-Mode Fiber Single-Mode Fiber Single-Mode Fiber Single-Mode Fiber
Dynamic Range 15/ 13dB 28/ 26dB 28/ 26dB 28/ 26dB
Accuracy + 1m+ Sampling interval + 0.003% Distance) ( not include Refractive index into error)
Event dead zone 1.6m
Resolution 0.1m-16m
Range ( Single-Mode Fiber) 1.6m/ 0.1m-16m
Pulse width ( Single-Mode Fiber) 1.6km~ 80km/ 10ns~ 10240ns
Loss Threshold 0.01Db
Sampling Points 65K