The Unis C02 Controller is really simple to set up and use, you simply dial in the grow room size on your Unis controller, connect up the regulator to your gas bottle The Unis CO2 Controller has been designed with the latest state of the art microprocessor technology which allows 16 individual settings for room size. There is no requirement to alter the flow rate of the gas regulator which is factory pre-set to match the controller making set up and use extremely simple. The Unis CO2 controller was the first commercially available dedicated CO2 controller on the UK market with a revolutionary set-and-forget design for fast and simple set up and ease of use. The Unis controller has provided growers with a competitively priced, easy to set up and very reliable means of enhancing CO2 levels. The EcoTechnics Unis CO2 controller has been specifically designed to allow easy CO2 enrichment for home grow room and glass house horticulture, this unique approach to Gas Regulator design makes this the simplest system to set up in the world. Just calculate the volume of your growing area in cubic meters and dial it into the Unis Controller its that simple, no more complex calculations about gas flow rate, pressure, on period / off period timing just one setting. The latest version of the Unis CO2 controller is microprocessor based and has 16 settings from 1 Cubic Meter to 100 Cubic Meters. In use the Unis Controller is very simple and will provide years of trouble free service. You can save CO2 usage by plugging the Unis into a 24hour timer so that it is only powered ON in the DAY cycle, as plants don't need CO2 in the dark, as photosynthesis isn't occuring.
Have a look at the Unis C02 Controller guide here.