Introducing the new Sentinel GPS ICG-30 Intelligent CO2 Generator available in Propane or Natural Gas configurations. Although designed to work with the new Sentinel Intelligent CO2 Enrichment (S.I.C.E.) with patented interface, the ICG-30 Intelligent CO2 Generator is fully compatible with older Sentinel products like the CHHC-4, CPPM-4, recycle timers or even competitor environmental controller units much in the same way as the Sentinel VCG-27. The user has the ability to pre-program the ICG-30 Intelligent CO2 Generator burner assembly to operate in 3 configurations, from low output to high output, every time the unit is activated. All electronics, valves and gas fittings are enclosed in a heavy-duty, powder coated steel frame for unmatched durability.