Control the pH value automatically in your water tank or grow system! Indispensable for the professional grower who wants perfect plant results and pH adjustment completely automatically. The pH display and dosing pump give you fully automatic control over the pH value. The stable pH pump allows you to maintain the perfect pH value 24/7. After selecting the desired pH value on the display between pH 5.5 and 9.5, the pH pump will automatically add pH down or pH up liquid to always maintain the desired pH value. Most often, the plants will cause the pH value to rise, so it would be ideal to use the pH controller together with pH down liquid, so that the pH value is kept down at the optimal level. With the perfect pH value, you ensure that your plants can always absorb all the vital nutrients from the fertilizer and achieve healthy and vigorous growth.