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Ruolan

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

    • Based on 10,137 reviews
Condition: New
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$9.99 Why this price?
Holiday Deal · 17% off was $11.99

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Dec 31
Order within 8 hours and 24 minutes
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Style: pH Meter Red


Features

  • How to use calibrationPress CAL for 5 seconds to enter the calibration mode, press in turn to select the powders corresponding to 6.86, 4, and 9.18 to complete the calibration.
  • Mini SizeThe mini size ph meter we designed allows you to easily put it in your pocket, so you can take measurements anytime, anywhere. It can help you test it whether you take it to the pool, on a trip, to the beach or camping.
  • Family EssentialsAs a tool to improve the quality of life. Can be used to test drinking water, swimming pools, PH balance in aquarium, RO system, spa or hydroponics. Basically all the environments that need to test PH value can use this tester to get accurate data.
  • Easy to useturn on the switch,put the probe into the water and stir (make the small glass ball fully contact the liquid) and the value can be read when the value is stable.
  • Automatic temperature compensationThere is no need to care about the temperature of the liquid being measured. The PH meter has an automatic temperature compensation function, which can be adjusted according to the water temperature and water quality.

Package Dimensions ‏ : ‎ 6.93 x 2.13 x 1.26 inches; 3.21 ounces


Item model number ‏ : ‎ ILEE


Batteries ‏ : ‎ 2 AA batteries required. (included)


Date First Available ‏ : ‎ March 26, 2021


Manufacturer ‏ : ‎ Ruolan


Country of Origin ‏ : ‎ USA


Best Sellers Rank: #468 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Lab pH Meters


#2 in Lab pH Meters:


Customer Reviews: 4.0 4.0 out of 5 stars 10,137 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Calibration was fun and the meter works very well.
Style: pH Meter Blue
Very nifty device for an amazingly reasonable price.
Reviewed in the United States on May 2, 2024 by Jonathan Adler
    • not accurate
Style: pH Meter Yellow
tested compared to chemical tester, not accurate nor consistent
Reviewed in the United States on January 10, 2024 by William Pickles
    • I like it, but...
Style: pH Meter Blue
This Ph tester does all it claim to do and does it well. And it is well worth the price. But... According to the directions, for real accuracy, you need to calibrate the unit periodically, particularly if it has been sitting idle for a long time. I will be using it during the summer and fall, when I ferment some of our summer harvest and make vinegar. I feel I would be wise to calibrate it each year, but the chemical packets you are to add to distilled water for calibration are only large enough for one batch. That, I don't like. ... show more
Reviewed in the United States on March 10, 2024 by Steven A. Lomba
    • So cheap it wasn't even worth returning once I figured out how imprecise and inaccurate it was.
Style: pH Meter Yellow
I never expected a cheap instrument to be great... I was just looking for a device with a digital readout instead of trying to match a color to determine pH. I didn't need anything accurate beyond a whole number... is the pH 4 or 6? That's all I needed... so I figured that this cheap device would work for me. Wrong. I calibrated it several times, using the supplied powders, ensured all of my water was within the specified temperature, and that the powders were fully dissolved. Each time I calibrated, I would go back to check the pH of my distilled water. I would get a 7... sounds great!... until I would remove the probe for a moment... and put it back in the water... hmmm... 9??? lets try that again... 3???? Lets calibrate again... Fully calibrated... now the water is a 4... oh wait it's ZERO.... Tried it several times... found that there was no precision nor accuracy in this tester... I decided to just throw the whole thing in the trash, since it would cost more in fuel to return the device.... And out of spite... just some spite. Don't bother with this thing. It's not worth the time I spent trying to get it to read the same liquid twice in a row. ... show more
Reviewed in the United States on April 9, 2024 by Rowdy Roddy
    • Easy
Style: pH Meter Yellow
Easy to use. Nice case
Reviewed in the United States on April 19, 2024 by David Giffin
    • I question the accuracy.
Style: pH Meter Red
This meter comes with calibration powder and instructions on how to calibrate it. I followed the instructions but the meter is still all over the place. Even after calibrating it, the reading was fluctuating wildly in the calibration solution. Be aware that you will need distilled water and a way to measure 250ml to create the calibration solution. It's very possible that this is all due to user error, but I did not expect to have to calibrate the thing. Some of the other ones said they were self-calibrating, I believe. I haven't decided if I will keep it or not. ... show more
Reviewed in the United States on February 7, 2024 by Matt
    • Works as it should
Style: pH Meter Yellow
Calibration was easy and it works just as it should.
Reviewed in the United States on May 9, 2024 by Jerry
    • pHun Times with the pH Master: A Comedic Journey into Water's Soul!
Style: pH Meter Yellow
So, I recently became the proud owner of a pH meter, and let me tell you, it's been one heck of a wild ride into the acidic and alkaline realms of liquid existence. First off, the moment I unboxed this thing, I felt like a mad scientist about to unravel the secrets of the universe – or at least the mysteries of my tap water. I dubbed it the "pH Master," and boy, does it take its job seriously. Testing various liquids became a bizarre adventure. I felt like a water detective, hunting down the elusive pH culprits in my kitchen. Spoiler alert: my tap water is apparently more mysterious than a Netflix crime series. Who knew H2O had such a dark side? Now, the real entertainment comes when you start testing random stuff. I found myself wondering, "What's the pH of my morning coffee? Is my plant's water too basic for its liking?" The pH Master turned me into a liquid Sherlock Holmes, solving the mysteries of pH, one drop at a time. But let's not forget the dramatic beeping – the pH Master's way of saying, "Hold on to your test tubes, we've got a pH anomaly!" It's like the soundtrack to a suspenseful movie, playing as I decipher the pH code of my surroundings. In conclusion, the pH meter has turned my ordinary water-drinking life into a thrilling comedy. Who knew checking the acidity of liquids could be this much fun? If you're ready to embark on a journey of liquid discovery and want your water to have a theme song, the pH Master is your ticket to a pHantastic time! 🎭💧 #pHMasterAdventures #WaterDetectiveLaughs ... show more
Reviewed in the United States on December 31, 2023 by North Shore Aloha

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