ZIVA-OTDR801HN With its lightweight design and user friendly dimension is perfect for the outside plant environment and can be easily operated with one hand. ZIVA-OTDR801HN ensures accurate and complete fiber evaluation while the testing requires only one key to start, allowing anyone to proceed error-free testing. Its ease of use, low price, high resolution and compact size make it be a qualified tester in installation, operation and maintenance of optical networks, and also save you a lot of money and time.