TrolMaster Carbon X Controller PTB1130VEP3 These fans come with an

These fans come with an 8 ft 120 V power cord

This protective boot is an accessory that you will be happy to have made the decision to purchase

ORMI Listed for organic use

Three measurements

Back Flow Protection : Air gap in the fill cap prevents pressure built up

TrolMaster Carbon X Controller PTB1130VEP3 These fans come with anThe TrolMaster Carbon X system provides critical monitoring of CO2 levels for up to 13 separate zones rooms. The system can have both high level (up to 30,000ppm) alerts, as well as low level (5,000ppm) alerts. Both high and low level limits are user adjustable to meet local regulations for supplemental CO2 use indoors. The Carbon X system can also control various devices such as ventilation fans, dampers, main CO2 valves as well as to send a signal