Kamoer Dosing Pump Single X1 Pro 2, Liquid Doser with WiFi Connectivity Flexible and precise control of liquid additions to your aquarium. Easy to use mobile interface make set up a breeze. Daisy chain up to 4 – X1 PRO dosers per power supply. Dosing Times: 24 times/day -once/99 days Fluid Volume: .1ml – 9999.9ml Accuracy: < /-2%   U