A great retrofit upgrade for our Classic Series grow boxes. This kit comes with simple to follow instructions, and all parts needed to retrofit your current classic series grow box with an auto pH system.

When it comes to hydroponics, pH is kind of a big deal. Fully automated to keep your pH at perfect growing levels, it’ll ensure your plants are getting all the nutrients they need.

Retrofit - Order this if you already have one of our units.
Upgrade - Order this as an upgrade to a box you just ordered.

Features

• Control Range: 0.1-13.0 pH
• Accuracy: + or - 0.1
• Features: Flashing high and low alarms with lockouts
• Warranty: 3 years