Cheap And Discounts AUA-18U/A Mini OTDR Active Fiber Live Test 1550nm 20dB 80KM Optical Fiber Reflectometer Touch Screen OPM VFL OLS LED SC UPC/APC Wholesale. Buy Directly From Merchant Shop1103617577 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.