Cheap And Discounts PEGATAH 4K OTDR IPC Tester 1310/1550nm 1610nm Active Fiber Multi in 1 Optical Time Domain Reflectometer with OPM OLS VFL map Wholesale. Buy Directly From Merchant Tisan Video Surveillance Tech Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.