Electronic Temperature Control - A421abc-02c Late-Phase No bells and whistles

No bells and whistles

Powers a separate CO2 Regulator

We will also have to contact you

Using Bud Ignitor during the first two weeks of the bloom phase

lush buds filling out a huge harvest like you want them to

Electronic Temperature Control - A421abc-02c Late-Phase No bells and whistlesDirect 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