Kore 5th is the most advanced doser for aquarium industry. It is a completely wireless, 5 channel doser with integrated ATO (auto top off) and temp sensor(working with two level switches/optical sensors). Our control software allows users to not only connect to the doser wirelessly via bluetooth, but also set precise dosing schedules for any number of supplements or elements. Kore 5th gives users the ultimate control of dosing almost anything your reef may need! Now, ULTIMATE PACK include ALL fantastic additional modules/sensors what made this doser is outstanding product!