NSI introduces the waterproof ergonomical trackball with integrated IP68 scroll wheel. Easy scrolling & rolling throughout your applications, also in harsh environments. The trackball combines the patented optical trackball technology with the new hall-effect scroll wheel to provide a fully waterproof desktop trackball solution. This ergonomical unit has a removable top ring for easy cleaning, decontamination and maintenance, ensuring continued optimum performance and operation under harsh conditions. In the standard configuration the E50 Series is supplied with a black soft touch case, USB and PS/2 output, and a grey scroll wheel. The unit has been designed to be a freestanding desktop device and optimises desk space when compared to a mouse. This series is directly plug compatible to PS/2 or USB ports and offers very straight forward mounting and integration.