Exclusive 2.0 – CO₂ kit with solenoid valve and pH monitor
Complete CO2 set for planted freshwater aquariums, built around a pH controller that switches the CO2 solenoid…
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This kit suits freshwater planted tanks where CO2 supply needs to follow the water's pH rather than run on a timer. The pH controller drives the solenoid valve, so gas dosing adjusts to the actual water chemistry, which is especially useful at night when plants take up little CO2 and pH drops on its own.
Why it matters
- The controller reads pH through a 200 cm probe and temperature through a 150 cm probe, and corrects its readings for temperature changes.
- The reducer has a built-in bubble counter, precision needle valve, check valve and solenoid valve, so dosing can be counted and metered.
- Two gauges show the pressure inside the cylinder and the working pressure after reduction, which makes gas consumption easier to track.
- The 20 mm glass diffuser uses a ceramic sinter and releases gas across its whole surface, which helps CO2 dissolve in the water.
Specifications
- Controller pH setting range: 5.0 to 9.0 pH
- Controller pH display range: 1.0 to 13.0 pH
- pH measurement and reading accuracy: 0.1 pH
- Temperature reading range: 10 °C to 40 °C
- Controller dimensions: 7 x 2 x 10 cm
- pH probe cable: 200 cm, with a glass mounting holder
- Temperature probe cable: 150 cm, with a suction cup
- Gas hose: 3 m
- Power supply cable: 120 cm
- Calibration buffers: 4 pH and 7 pH, with a triple calibration cup
- Mounting: pouch with a strap for the CO2 cylinder, or cabinet mounting
What it works with
The set is designed for planted freshwater aquariums that use CO2 injection. It pairs with a standard CO2 cylinder through the included reducer, pouch and hose, and the controller can be placed in the cabinet or on the pouch. The pH range and temperature sensing are intended for typical planted freshwater setups.
Technical specification
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Frequently asked questions
The kit includes a pH controller, a black CO2 reducer with a solenoid valve, a 20 mm diffuser, a 3 m hose, a reducer wrench, a pH probe with a 200 cm cable, a temperature probe with a 150 cm cable and suction cup, pH 4 and pH 7 calibration buffers, a triple calibration cup, a cylinder pocket with Velcro strap, a power adapter with a 120 cm cable, and instructions in Polish and English.
The controller switches the CO2 supply on and off automatically through the solenoid valve connected to it. According to the description, this helps keep CO2 at a safe level in the water, especially at night when plants do not absorb it and pH tends to drop.
The pH setting range is 5.0 to 9.0, the display range is 1.0 to 13.0, and the reading accuracy is 0.1 pH. The temperature reading range is 10°C to 40°C, and the controller compensates for temperature changes.
Yes, the kit includes pH 4 and pH 7 calibration buffers and a triple calibration cup. The controller also has a calibration function.
The controller measures 7 x 2 x 10 cm and can be attached to the CO2 cylinder using the included pocket with a strap, or mounted on a cabinet. The pH probe holder can be fixed to the glass of the aquarium.
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