Exclusive 2.0 – CO₂ kit with solenoid valve and pH meter + 2‑litre cylinder
Complete CO2 kit for planted freshwater aquariums, combining a pH controller that switches the gas supply…
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This kit suits freshwater planted aquarium keepers who want CO2 supply controlled by water chemistry rather than set manually. The pH controller measures pH and drives the solenoid valve on the reducer, so the gas is dosed automatically and the owner does not need to adjust the flow by hand.
Why it matters
- Automatic on/off dosing: the solenoid valve connected to the pH controller switches CO2 on and off, as the manufacturer notes, mainly at night when plants stop consuming CO2 and pH falls.
- Two-probe measurement: the set includes a pH probe with a 200 cm cable and a temperature probe with a 150 cm cable, and the controller compensates readings for temperature.
- Gas handling hardware: the reducer has a bubble counter, a precision needle valve, a non-return valve and two gauges, one showing cylinder pressure and one showing working pressure.
- Calibration and mounting: the set includes pH 4 and pH 7 buffers, a multi-cup for calibration, and a cylinder pouch with Velcro for mounting the 2 L cylinder. The controller can also be mounted on a cabinet.
Specifications
- pH control range: 5.0 to 9.0 pH
- pH display range: 1.0 to 13.0 pH
- pH measurement and reading accuracy: 0.1 pH
- Temperature reading range: 10 to 40 °C
- Controller dimensions: 7 x 2 x 10 cm
- pH probe cable: 200 cm
- Temperature probe cable: 150 cm
- Gas hose: 3 m
- Diffuser: 20 mm glass nano diffuser with ceramic sinter
- Power supply cable: 120 cm
- CO2 cylinder: 2 L
What it works with
The kit is designed for freshwater planted aquariums where CO2 is dosed according to pH. The data provided does not specify tank volume or compatible tank sizes, so check your setup against the dosing requirements before purchase. Diffuser, hose and cylinder are included, so no further gas-line components are needed to start.
Technical specification
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Frequently asked questions
The kit includes the pH controller, a BLACK CO2 regulator with solenoid valve, a 20 mm diffuser, a 3 m hose, a 2 l CO2 cylinder, a wrench for the regulator, 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 strap pouch for the cylinder, a power adapter with a 120 cm cable, and instructions in Polish and English.
The controller's setpoint range is 5.0 to 9.0 pH, while its display shows values from 1.0 to 13.0 pH. Reading accuracy is 0.1 pH.
Yes, it includes a temperature sensor and thermal compensation, so pH readings account for temperature changes. The temperature reading range is 10°C to 40°C.
The solenoid valve connected to the pH controller switches CO2 supply on and off automatically based on the pH reading. The manufacturer notes this is useful at night, when plants stop consuming CO2 and pH tends to drop.
The controller can be attached to the cylinder with the included strap pouch or mounted to a cabinet, and its pH probe holder can be fitted to the glass. Calibration is done with the included pH 4 and pH 7 buffers and the triple calibration cup.
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Delivery methods
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