LTL 24V CO2 PPM Controller LTL Controls CO2 PPM Controller is a convenient digital microprocessor based carbon dioxide PPM controller. Capable of controlling and powering CO2 generators to enrich the CO2 levels of your grow room, LTL Controls CO2 PPM Controller was designed with... $353.68
LTL CO2 Digital CO2 PPM Controller, 5m remote sensor probe, 1-outlet The CO2 PPM Controller by LTL Controls is a simple and affordable way to control your CO2 injection device. Choose your desired CO2 level and the controller will maintain that specified value. A built-in photocell on the sensor will deactivate CO2... $414.68