Quick Overview
- Functional in both freshwater and saltwater applications
- Provides measurement of fundamental water parameters
- Use with CO2 systems, calcium reactors, and dosing pumps
- With 4.01 and 7.0 calibration fluid and control panel cover
- LED screen offers you an accurate, clear reading every time!
pH Controller
This pH Controller designed by Ista is a fantastic, convenient device that will greatly aid you in monitoring the acidity level of your aquarium water. Functional in both freshwater and saltwater applications, this Controller provides convenient measurement of pH levels.
FAQ
Can this pH controller be used in both freshwater and saltwater aquariums?
Yes, the Ista pH Controller is functional in both freshwater and saltwater applications.
What water parameters does this device measure?
This device provides measurement of fundamental water parameters, primarily pH levels.
Is it compatible with CO2 systems or calcium reactors?
Yes, it can be used with CO2 systems, calcium reactors, and dosing pumps.

Bernadette Rampling –
The pH Controller works reliably in my saltwater tank. The LED screen is easy to read and the device responds quickly to changes in water pH. I use it daily with my calcium reactor and it helps maintain stable conditions.
Wendy Roberts –
I found the calibration process straightforward. It’s accurate and the 4.01 and 7.0 calibration fluids included are useful. Works well with my dosing pump setup in a freshwater aquarium.
Nicholas Oliver –
This controller has been a game-changer for my reef tank. I can monitor pH levels in real time and adjust my CO2 system accordingly. The build quality is solid and the display is clear.