TrolMaster | CO2 PPM Controller (BETA-8)

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The TrolMaster BETA-8 CO2 Controller (BETA-8) offers a precision CO2 NDIR sensor / controller in an affordable easy-to-use package. The BETA-8 features a high-quality remote CO2 se nsor (with 16ft cable) and built-in photocell to automatically activate your supplemental CO2 system to maintain CO2 PPM levels only during daylight hours. The BETA-8 also has adjustable deadband and min-max recall. It also has a ‘fuzzy-logic’ feature which will more accurately control compressed CO2 systems.The CO2 sensor can be easily re-calibrated and will continue to operate accurately for many years. Note: Shipping is a Flat $40 for All ThinkGrow/TrolMaster Orders Show more