Easy to install, set up, and use, the Plug N Grow PNG-060 puts total control of your greenhouse's CO2 enrichment at the tips of your fingers. Designed to control CO2 regulators and CO2 generators, it's equipped with a high-temperature shutoff to prevent your plants from overheating. CO2 enrichment is stopped when your temperature set point is reached. Top Features The Plug N Grow CO2 Controller and its user-friendly features make CO2 enrichment easier than ever before. Real-Time Display: Provides current feedback on your space’s ambient CO2 level. Precise Set Point: Set your CO2 set point from 400 – 2,100 ppm. High Temperature Shut Off: Protect your plants from overheating with the high temperature shut off from 50 – 130 degrees Fahrenheit. Easy Calibration: One button calibration sets it at 400 ppm. Differentials: Features preset or automatic differentials. Designed to Work With This CO2 controller works with: CO2 Regulators CO2 Generators/Burners Summary Easily take control of your grow house's CO2 enrichment with the PNG-060 from Plug N Grow. What Customers Love Digital Display: Lets you know your real-time ambient CO2 level. Precise Control: Set your CO2 set point from 400 – 2,100 ppm.