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💧 Stay ahead of the curve with precision pH testing that fits in your pocket!
The Bluelab PENPH pH Pen is a fully waterproof, pocket-sized digital tester featuring a durable double junction glass probe for superior accuracy and lifespan. It offers easy two-point calibration with auto temperature compensation, a backlit LCD display, and calibration reminders, making it ideal for professionals managing hydroponics, pools, brewing, and water quality. Included accessories and a 1-year warranty ensure a ready-to-use, reliable tool trusted worldwide.
























| ASIN | B005POOJHG |
| Batteries | 1 AAA batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 26,720 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 42 in Lab pH Meters |
| Colour | White |
| Customer Reviews | 4.1 4.1 out of 5 stars (4,770) |
| Date First Available | 9 Aug. 2012 |
| Included components | PH Pen |
| Item Package Quantity | 1 |
| Item Weight | 122 g |
| Item model number | pH Pen |
| Manufacturer | Bluelab |
| Material | Glass |
| Number of Pieces | 1 |
| Part number | PENPH |
| Pattern | Single |
| Power source type | Battery Powered |
| Product Dimensions | 20.32 x 5.49 x 2.49 cm; 122.47 g |
| Size | Pack Of 1 |
| Special Features | Washable |
| Style | pH Pen |
| Volume | 945 Millilitres |
A**R
One given to me broke many years after recieveing it, I actually purchased this.
I dont know how old the one I was given 2nd hand was, I used it for 4 years. when I lost trust in it due to reasons, I purchased this one myself, as in, willing to spend money on it over the cheaper ones... comes with calibration fluid sachets. Great product.
R**0
Blue lab pH.
All good arrived on time and in good conditiond condition very happy. Blue lab pH for the win highly recommend.
A**R
Brand new and won’t read right
Brand new It’s Calibrated But yet gives different readings on the same water. It doesn’t work correctly One dip 5.4 then again a min later 8 then a min later 6.7 Will return
L**G
Worth Every Penny
Accurate, easy to use with the bonus of a temperature display. Feels like it's built to last compared to all the others I have wasted my money on. If looked after, I hope it will last for years to come.
S**1
nice piece of kit
so far so good, didn't look at the reviews before purchasing but the pen is one of the best i've had. works as it should and has been submerged in water with no faults. near instant readings and is just what i was looking for.
M**T
Could work longer
Didnt last long unfortunately
G**L
a quality product
trashed a couple of cheap ph meters. The reviews of this one suggest that it is far better value for money it terms of robustness and accuracy
K**L
Better avail for money
Fast and stable read, build quality not on par with EC wand though. Overall I think would have been better to get Apera Instruments PH60 Premium kit as has a replaceable probe and lots more free solutions.
J**Z
Me gusto, es fácil de calibrar. Te avisa cuando se necesita calibrar, lo único difícil es conseguir el humectador de sonda. Pero de ahí en más es un gran aparato.🤘🏼
A**T
These do a good job of what is required of them.
D**E
Uno dei migliori misuratori di ph per l'acqua, il prezzo è alto, ma la qualità è eccellente
J**O
Muy buen pH-metro, muy fiable y fácil de utilizar
T**Y
First let me say DO NOT be discouraged from the one star reviews. I can understand someone being upset if they buy a new pen and get one that’s broken but if that’s the case none of us would ever own anything. It is absolutely impossible to buy anything that doesn’t have a bad review because of something that in many cases that has absolutely nothing to do with how the product works, go look up anything you own and love and someone had an issue, seriously go look and see, I’ve tried it there is nothing I’ve found that everyone loves. This pen is awesome if you are a grower and ph is vital and you want to be a next level grower. I’ve had mine 2 years and when it stops working I will immediately get another one. It does take a small bit of little effort to add a few drops of storage solution that you have to buy extra but that last a long time and it’s worth it to me. You add it after each use to keep it hydrated. If it dries out the pen is not ruined like some say but you might have to recalibrate which is easy after your first few times, especially with the step by step YouTube videos available to watch while you’re doing it. Just remember there are a lot of lazy incompetent people out there that all they want to do is push a button and be done with it and expect everything to be instant and do nothing else. It all comes down to how important ph means to you and it is very important to me. This pen is accurate and it’s awesome and requires very little effort to maintain and it has helped me take my growing to the next level. It also works great with my pool to, way better than those test strips they have that do work but not quite as accurate as this ph pen. Thousands of top growers use this pen and depend on it, you see them on YouTube all the time using it. I happened to run across the reviews looking for something else and wanted to see what the hater’s were saying and now that I’ve used the Bluelab pen a couple of years I felt I could give a genuine review based on my experience with it. So, now it’s up to you to decide. Good luck!
Trustpilot
2 weeks ago
1 day ago