WEIPRO PH CO2 Controller For Planted Aquariums
System Customisation
Key Facts
- Includes control unit, pH electrode, calibration solution, and electrode suction clips.
- Constant monitoring of aquarium pH.
- Automatic control of your CO2 dosing.
- Removes the guess work out of the time your CO2 should be on.
- Eliminates the possibility of overdosing your aquarium with CO2.
- Suitable for 230v-240v AC.
- Accuracy: +/- 0.01pH
Description
The pH Controller constantly checks the pH of your aquarium water, so that when the pH increases, it switches on the plug, which your solenoid regulator is plugged into. That turns on the flow of CO2 which lowers the pH of the water. When the pH reaches your target level, it turns the solenoid off.
A pH Controller will also ensure that you don't 'overdose' your aquarium with CO2, either by using a timer plug an accidentally setting it on for too long, or 'end of tank dump'. It also means you only dose CO2 when it's needed, and therefore use less CO2 than you might otherwise. A pH Controller will therefore eventually pay for itself in saved CO2 refills.
Package Contents
- pH Controller Unit
- pH 7.0 Buffer Solution
- Electrode
Instructions
- Connect the pH electrode to pH terminal.
- Connect your CO2 solenoid regulator (not included) to the controller plug.
- Connect the AC power (230V~50/60Hz).
- Slide switch to 'SET'.
- Using the plastic screwdriver provided, adjust the "SET" knob until it reads the pH you want your aquarium to maintain. Most freshwater tropical plants like a pH of 6.5 - 6.8.
- Slide switch to 'PH'.
- Pour pH 7 buffer solution into the electrode receptacle so it is half-full.
- Insert the pH electrode into the buffer receptacle.
- Adjust the "CAL/PH7" knob with the plastic screwdriver until the display reads "7.00". The device is now calibrated.
- Put the pH electrode in the aquarium water, ensuring cap of electrode is above the water level.
- The controller will switch on the CO2 when the pH climbs ~0.1 above your desired pH. It will remain switched on until the pH drops ~0.1 below your desired pH.
- You may wish to check the pH7 calibration every couple of months to ensure accurate operation.
- Click here to read the full WEIPRO pH Controller setup guide
Customer Reviews
Average Rating
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David P.
2nd May 2024
A decent product and does the job it is intended to do, and works better than the description describes as it switches on when the PH is 0.05 over from what is set. For example; mine is set to 6.8, and it switches on at 6.85, and switches of at 6.7, effectively keeping the CO2 levels stable. The reason I have knocked off a star is because the dials are very very sensitive. I am talking adjusting the read more... A decent product and does the job it is intended to do, and works better than the description describes as it switches on when the PH is 0.05 over from what is set. For example; mine is set to 6.8, and it switches on at 6.85, and switches of at 6.7, effectively keeping the CO2 levels stable. The reason I have knocked off a star is because the dials are very very sensitive. I am talking adjusting the dials by half a millimetre and it climbing 2-3 whole (not decimal) numbers sensitive. Making it very fiddly to get it set-up properly. Once set-up though, it does a fantastic job. I really can't fault it
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Paul F.
21st Mar 2024
I bought this so I could be really accurate with my pH but it's also got the added benefit of providing a fail-safe against accidental CO2 overdosing and also if you increase the CO2 dosing rate a bit then it means during the day there are period where the target pH is reached and there are no CO2 bubbles floating around in the tank, so the water looks really nice and clear. I bought this so I could be really accurate with my pH but it's also got the added benefit of providing a fail-safe against accidental CO2 overdosing and also if you increase the CO2 dosing rate a bit then it means during the day there are period where the target pH is reached and there are no CO2 bubbles floating around in the tank, so the water looks really nice and clear.
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Alex W.
29th Feb 2024
Easy to use and does the job nicely Easy to use and does the job nicely
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Malcolm A.
3rd Jan 2024
This is my first Ph controller so was a bit conerned it'd be a bit complicated but its actually dead easy to use and has been working perfectly since installing it a month or so ago This is my first Ph controller so was a bit conerned it'd be a bit complicated but its actually dead easy to use and has been working perfectly since installing it a month or so ago
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Simon B.
8th Dec 2023
Good controller very accurate. Heres a tip, it's a good idea to plug the controller into a timer plug / smart plug so you make sure no CO2 is dosed when the lights are off Good controller very accurate. Heres a tip, it's a good idea to plug the controller into a timer plug / smart plug so you make sure no CO2 is dosed when the lights are off
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Dan F.
15th Nov 2023
Fast delivery and had it up and running in no time! Fast delivery and had it up and running in no time!
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Andrew D.
24th Oct 2023
Gives you an accurate way to control CO2 levels and also acts as a failsafe against overdosing CO2 Gives you an accurate way to control CO2 levels and also acts as a failsafe against overdosing CO2
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John C.
28th Sep 2023
Fast delivery and works really well Fast delivery and works really well
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Alex D.
7th Sep 2023
Fast delivery and easy to use. Fast delivery and easy to use.
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Karen H.
4th Sep 2023
Rubbish, not fit for purpose. Extremely dificult to set target pH and pH fluctuates too much between on and off, creating a HUUUUGGGEE CO2 fluctuation of 0.2 between on and off. Fluctuating CO2 is one of the biggest causes of various algaes and problems in CO2 supplemented planted tanks. Apparently this is all normal according to CO2 supermarket :/ I would avoid this product if you want accurate read more... Rubbish, not fit for purpose. Extremely dificult to set target pH and pH fluctuates too much between on and off, creating a HUUUUGGGEE CO2 fluctuation of 0.2 between on and off. Fluctuating CO2 is one of the biggest causes of various algaes and problems in CO2 supplemented planted tanks. Apparently this is all normal according to CO2 supermarket :/ I would avoid this product if you want accurate CO2 control.
Reply from CO2 Supermarket
We're sorry to read your review, Karen, but what you have said is incorrect and we wish to clarify for others who read this. The idea with the controller (and all pH controllers) is you set a target pH, for example 6.8, and the controller will activate the plug (for the CO2 solenoid) when the pH rises slightly above target, e.g. 6.9 and will remain switched on until the pH drops slightly below target, e.g. 6.7. In effect the controller maintains a range of 6.7 - 6.9, but most of the time the pH will be close to the target of 6.8. This is done to reduce cycling, so that the controller / CO2 is on for a solid duration and isn't constantly switching on and off in an attempt to maintain exactly 6.8, otherwise one minute it will be on, the next it will be off, and so on, which is not desirable. Maintaining a range like this is a deliberate and desirable design feature, not a negative aspect of the controller and you may not have understood the reason it does this. In addition, maintaining this 0.2 pH range is a miniscule amount and saying this is a "HUUUUGGGEE" pH range that will cause algae problems is simply incorrect and misleading.
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Control Unit
All Parts
Universal Plug for Solenoid
