Titan Controls Digital Environmental Controller w/ Carbon Dioxide (CO2) PPM Control, 120V - Saturn 6 The Saturn 6 give you the control of your temperature, humidity and CO2 PPM levels with digital accuracy Comes with a 15 foot remote sensor which also features a photocell The photocell ensures daytime only CO2 enrichment and the ability to control a 'night only' device Has min/max data logging capabilities 3 year warranty; ETL listed