Reef Factory Smart ICP OES 1 (Salt Water) is a modern, easy to use and the most accurate way of testing seawater available to the aquarist Smart ICP-OES is an atomic emission spectrometry technique used to accurately determine elements over a wide range of concentrations in simple and intuitive Reef Factory software. Smart ICP is a modern, user-friendly and the most accurate way of testing seawater available to the aquarist. Thanks to modern technology, ensuring stable parameters in a marine aquarium has never been easier.