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Autopilot Digital pH Controller

Autopilot Digital pH Controller


Regular price $419.20 USD
Regular price Sale price $419.20 USD
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The Autopilot Digital pH Controller is a state-of-the-art device designed to maintain precise pH levels in various hydroponic, aquaponic, and aquatic systems. This controller offers an automated and reliable way to regulate the pH of your water, ensuring optimal conditions for plants or aquatic life. With user-friendly features and robust performance, it’s an indispensable tool for growers and aquarists seeking to achieve consistent pH control.

Key Features:

1. Accurate pH Control: The Autopilot pH Controller accurately measures and adjusts the pH levels in your water. This precision is crucial for hydroponic and aquaponic systems where nutrient uptake by plants relies on specific pH ranges.

2. User-Friendly Interface: The digital interface is intuitive and easy to navigate. Users can set their desired pH range and calibration points with ease.
pH Probe: This controller includes a high-quality pH probe, which is essential for accurate pH monitoring. The probe is easy to install and provides dependable readings.

3. Automatic pH Adjustment: The controller is equipped with a dosing pump or solenoid valve (not included) that automatically adds pH-adjusting chemicals to the system when the pH drifts out of the desired range.
Customizable Set Points: Users can program upper and lower pH set points to maintain the desired pH range, reducing the need for manual adjustments.

4. Alarm System: The Autopilot pH Controller can be set to trigger alarms in case of pH fluctuations beyond the defined range, ensuring prompt corrective action.
Versatile Applications: Ideal for hydroponic and aquaponic systems, as well as aquariums, fish tanks, and other aquatic environments where pH control is vital for the health of plants or aquatic life.


• Hydroponics: Essential for maintaining the pH levels necessary for optimal nutrient absorption by plants.
Aquaponics: Ensures the pH levels required for the well-being of both aquatic life and plants in aquaponic systems.

• Aquariums: Ideal for aquarium enthusiasts who need to maintain stable pH conditions for their aquatic ecosystems.
Industrial Applications: Used in various industrial processes where water pH regulation is critical.


1. Connect the pH probe to the controller according to the provided instructions.

2. Calibrate the pH probe to ensure accurate measurements.

3. Set the desired pH range and alarm parameters.

4. Install the dosing pump or solenoid valve (not included) to add pH-adjusting chemicals automatically.

5. Monitor the system, and the controller will make adjustments as needed to maintain the pH within the specified range.

6. The Autopilot Digital pH Controller simplifies pH management, saving time and effort while promoting healthier, more vibrant plant growth or aquatic life. With its advanced features and automation capabilities, it’s a valuable addition to any system where pH control is essential.

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What is Hydroponics?

Hydroponics is the science of growing plants without soil. The plants thrive on the nutrient-water solution alone. The growing medium merely acts as a support for the plants and their root systems while the solution passes freely. The growing medium, if any, is totally inert.

What types of plants grow best hydroponically?

Anything can be grown hydroponically, but some plants prove to be more space efficient. Some plants we suggest are tomatoes, sweet peppers, hot chilies, lettuce, spinach, squash, cucumbers, broccoli, beans, snow peas, herbs and flowers of all types.

Can you REALLY get better yields/quicker growth?

Absolutely. The plants, when receiving everything they need, tend to be healthier, faster growing and generally more productive. You can expect 30% faster growth with many crops.

What are the watering cycle timelines hydroponic systems?

Once the reservoir is filled with nutrients, it is time to put your hydro system to work! The ease of hydroponics is automation – automation is achieved by putting the pump on a timer according to your watering needs. The watering cycle depends on growth stage, growing medium and hydroponic system. In an ebb and flow or drip system with rockwool as the medium, seedlings, clones and plants in the early vegetative stage require watering only once a day for 15-30 minutes (twice a day for higher temps). Mature, flowering and fruiting plants require a heavier feed and can be fed once a day for 30 minutes (twice a day for higher temps). Typically soiless mixes and coco fiber can be watered for about 15 minutes twice a day, and can be adjusted for heavier feeding during the flowering and fruiting stage or higher temps. ViaStone, Hydroton, Grow Rocks, and Silicate mediums need to be watered more frequently – a constant drip for drip systems, and about 15-30 minutes every 3 hours for ebb and flow systems and can be adjusted for heavier feeding during the flowering and fruiting stage or higher temps. Aeroponic systems require frequent watering cycles; 30-60 seconds every few minutes or a constant spray.

What do I need to test pH? How do I test pH?

pH has a range from 0 (acidic) – 14 (alkaline), with 7 being neutral. A proper hydroponic pH range is between 5.5 to 6.2 for most hydroponic crops. For specific crop pH, check out our Plant Guide. pH must remain within the proper range for good plant health, disease resistance, and proper nutrient uptake. pH is maintained by adding pH Up and pH Down to the nutrient solution. For more information, see the Testssection of our site.

How will the flavor compare to my outdoor grown, organic produce?

The taste may be even better! This is simply due to the fact that the hydroponically grown plants are getting everything they need, when they need it. Don’t be fooled by “hot house” produce grown commercially. The grower’s primary concern is shipability and storage, not flavor. When you grow your own vegetables at home, you can expect nothing less than excellent results. Plus, hydroponically grown produce has the added benefit of a longer shelf life.