Electronic Temperature Control - A421abc-02c Late-Phase Powers a separate CO2 Regulator

Powers a separate CO2 Regulator

Better maturing and protection

This highly soluble and stable tea solution can be used in hydro or soil

These highly soluble organic compounds increase and promote healthy root structures

Every last detail has been accounted for to make this product as perfect as scientifically possible

Electronic Temperature Control - A421abc-02c Late-Phase Powers a separate CO2 RegulatorDirect Replacement To The A419abc 1C The A421 Series Electronic Temperature Controls Are Single Stage Controls With A Single Pole, Double Throw (Spdt) Output Relay. A421 Controls Feature A Bright Backlit Lcd With Adjustable Brightness And A Three Button Touchpad Interface That Can Be Set Up To Restrict User Adjustments. An Led Indicates The Output Relay's On Off Status. Standard A421 Series Control Modules Have Simple On And Off Temperature Settings