As one of the top seller among the whole product range. NF-8601W wins many fans from all over the world for it's practical usage, cost-effective price and reliable quality. It can test cable continuity, cable length, cable location, also test PoE and PING. With 8 remotes can test 8 cables once time then help you improve work efficiency.To improve our product quality, Noyafa always trying it's best to collect all product inf and requirement from customers around the world, with their support we can keep on moving