TrolMaster Hydro-X CO2 Sensor w/ RJ12 Splitter & 16' Cable, MBS-S8Take Control of Your Grow Room's CO2 with the TrolMaster Hydro X CO2 Sensor (MBS S8) Maximize your plants' potential with the TrolMaster Hydro X CO2 Sensor (MBS S8). This essential tool allows you to precisely monitor and control carbon dioxide levels within your grow environment, leading to healthier plants and increased yields. Key Features: Accurate CO2 Measurement: The MBS S8 accurately measures CO2 levels in parts per million (PPM), providing