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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

4.0 4.0 out of 5 stars 10,095 ratings
$8.99 with 25 percent savings
List Price: $11.99

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pH Meter Blue
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Purchase options and add-ons

  • A friendly reminder: Regularly cleaning your Ph meter electrode is crucial for ensuring accurate data. Contamination of the electrode can lead to unstable measurements. Please use the appropriate cleaning solution. If you have any questions, feel free to reach out to our customer service.
  • 【Mini Size】The 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 Essentials】As 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 use】turn 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 compensation】There 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.

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Product details

  • Package Dimensions ‏ : ‎ 6.85 x 2.09 x 1.3 inches; 3.53 ounces
  • Item model number ‏ : ‎ ILEE
  • Date First Available ‏ : ‎ March 18, 2021
  • Manufacturer ‏ : ‎ Ruolan
  • ASIN ‏ : ‎ B08ZDCXSYT
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.0 4.0 out of 5 stars 10,095 ratings

Important information

Legal Disclaimer

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Product Description

PH tester usage related issues:

  • When the PH meter is turned on in the air, the value jumps irregularly, which is a normal phenomenon. The value in the air cannot be used as a reference.

  • When measuring the water with the PH meter, it needs to be stirred gently (to remove the bubbles attached to the probe), and it takes a period of stabilization. It is normal for the value to jump up or down during the test. Please do not just insert it and read it immediately.

  • White crystalline salt appears around the electrode of the PH meter, which is a normal phenomenon of the PH electrode, and the electrode can be removed by immersing it in water and cleaning.

  • The PH meter electrode is made of glass, which is fragile. Please do not drop it or touch it with your hands. Do not test the water above 50℃. Do not test the strong acid and alkali, which will cause the electrode glass to burst.

ph meter

Product name: 0.01ph automatic calibration ph pen

Test item: water ph value

Working environment: 0-80℃, RH<95%

Measuring range: 0.00-14.00ph

Automatic temperature compensation: 0-80℃

Calibration function: two-point automatic calibration

Application scope: water hydroponics, laboratory, pool,industrial water treatment, water purifier

ph meter

How to use:

  1. Take off the pen cover and clean the electrode with pure water
  2. Put the pen probe into the solution, taking care not to exceed the water level
  3. Turn on the switch, stir gently, and wait for the reading to stabilize
  4. After the reading is stable, read the displayed value
  5. After the test, clean the electrode with pure water, dry the water on the pen tip in time, and cover the pen cover back

Standard configuration：

  • 1XPH meter
  • 3X calibration powder
  • 1X gift box
  • 1X instruction manual
ph meter for water

Pay attention to the calibration sequence (6.86-4-9.18)

ph meter for water
Precautions:

Please note that the PH pen probe is a glass product and is a fragile product. Please do not collide with things. Once the damage is not replaceable, you must protect the probe. After use, use absorbent paper to gently absorb the water on the probe.

Instructions for use of PH calibration powder:

Calibration powder:pH standard solid substance. It can be used after adding water. Suitable for calibrating any type of ph meter. Each package needs to prepare 250ML of purified water.

(Note that the configured water must be purified water or distilled water. Tap water and mineral water cannot be used to configure the calibration solution.

The water must be added in the required proportion, otherwise it will affect the accuracy of the calibration and increase the error)

  • The configured calibrators shall be sealed with clean bottles and stored in a cool place away from light.
  • The shelf life of the calibration powder is 2 years, and the shelf life of the calibration solution after configuration is 6 months

Matters needing attention:

PH meter has been calibrated before delivery, the buyer does not need to re-calibrate after receiving the goods!

In the following cases, the PH meter must be re-calibrated:

  1. Has been used for a long time after calibration;
  2. Special electrode use Frequently;
  3. The measurement accuracy requirements are relatively high.

ph meter for water

About the battery：

If the backlight brightness drops significantly or the display value is blurred, the battery should be replaced.

When replacing the battery, just pull out the battery compartment and replace it. NoteThe polarity of the battery.

What's in the box

  • 1XPH meter ;3X calibration powder ;1X gift box; 1X instruction manual

    • Looking for specific info?

    Customer reviews

    4 out of 5 stars
    4 out of 5
    10,095 global ratings

    Customers say

    Customers are satisfied with the instructions. However, they are disappointed with the construction and battery life. Opinions are mixed on performance, quality, value, accuracy, and readability.

    AI-generated from the text of customer reviews

    270 customers mention226 positive44 negative

    Customers find the instructions for the ph meter simple and convenient. They also say the setup was easy and it's easier than using Taylor test kits.

    "Easy to use. Nice case" Read more

    "...Very easy to calibrate and to use. Easy to clean. I had purchased a three in one moisture/PH/light meter....bad move...." Read more

    "The instructions are simple and setup was easy." Read more

    "Like it's handy case, easy to use, tape or film over bottons will for sure not last..." Read more

    490 customers mention160 positive330 negative

    Customers are mixed about the accuracy of the lab supply. Some mention that it's perfectly accurate after calibrating, and a reliable tester that can be calibrated. However, others say that the numbers on the packet are not accurate at all after calibration, and it'll take some time to calibrate.

    "tested compared to chemical tester, not accurate nor consistent" Read more

    "This meter comes with calibration powder and instructions on how to calibrate it...." Read more

    "...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,..." Read more

    "All I wanted was to get accurate whole numbers but the calibration was so confusing that I went back back to pH paper. Still not sure how it works...." Read more

    469 customers mention205 positive264 negative

    Customers are mixed about the performance of the lab supply. Some mention that it works very well, while others say that it failed to work from the get go. The liquid above the probe messes with the function, saying the PH of your sample.

    "...I found on this is if you get any liquid above the probe it messes with the function, saying the PH of your sample is significantly more base than..." Read more

    "Works great for me. Good price. Get it." Read more

    "...It works when it works. But, it wasn't made to keep working." Read more

    "This Ph tester does all it claim to do and does it well. And it is well worth the price.But......" Read more

    326 customers mention123 positive203 negative

    Customers are mixed about the quality of the lab supply. Some mention it's worth having a reliable tester that can be calibrated, while others say it'll malfunction and be useless for a couple days.

    "...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." Read more

    "...But it will take care of you. It's a very good meter & I will buy it again. I use it everyday. And for accuracy...." Read more

    "...I followed the instructions but the meter is still all over the place...." Read more

    "...The 4 was 6.86, 7 was 9.18 and the 9 was either erroring out or showing high 11/12 readings...." Read more

    209 customers mention137 positive72 negative

    Customers are mixed about the value of the lab supply. Some mention that it's easy to read, easy to use, and a value for the money. They say it'll be a good investment and has reasonable accuracy for the price. Others however, say that it just ain't worth it, very subpar, and made of cheap plastic.

    "Works great for me. Good price. Get it." Read more

    "This is a very very very cheaply made meter that's VERY susceptible to damage. It's not water proof or even water resistant...." Read more

    "...And it is well worth the price.But......" Read more

    "its accurate and cheap PREFECT" Read more

    70 customers mention22 positive48 negative

    Customers are mixed about the readability of the product. Some mention it's easier to read, provides a quick read, and is extremely accurate. However, others say that the reading is erratic at best, fluctuating wildly, and impossible to tell if it'll read correctly.

    "...Even after calibrating it, the reading was fluctuating wildly in the calibration solution...." Read more

    "...immediately the equipment after opening the package and the reading was way off but works perfectly after calibration, the process is just tedious..." Read more

    "...So something is wrong.so... the readings are easy to see.... The device is easy to use (once calibrated, and calibration isn't hard),..." Read more

    "...solution was correct, but after that solution it started reading incorrectly...." Read more

    111 customers mention13 positive98 negative

    Customers are dissatisfied with the construction of the pH meter. They mention that it breaks easily, constantly breaks or just stops working, and is not reliable. Some say that the container is broken and the glass diode broke. Overall, customers are disappointed with the meter's construction and recommend looking for another meter or brand.

    "...It feels flimsy, almost like I could crush it in my hand. I also don't believe it would survive many falls...." Read more

    "...These meters are very delicate, so be careful not to drop it or bang it. It will last a long time, as long as it’s taken care of properly." Read more

    "...because while cleaning it water can easily leak in and fry the unprotected electronics...." Read more

    "This is a very very very cheaply made meter that's VERY susceptible to damage. It's not water proof or even water resistant...." Read more

    49 customers mention0 positive49 negative

    Customers are dissatisfied with the battery life of the lab supply. They mention that the batteries were already dead when they received it, and that they had to replace them. Some customers also report that the product drains battery even when powered off.

    "...that you must recalibrate under the following conditions: lengthy periods of inactivity (not defined), very frequent use (again not defined), the..." Read more

    "...Swapped batteries to no avail." Read more

    "Did not turn on when it arrived. I suspect the batteries are dead, but I’m not going to buy replacements since they’re more expensive than this..." Read more

    "New batteries didn't help. Bummer. It worked well enough for the brief period that it was working." Read more

    Overall the tool is worth the bucks
    4 Stars
    Overall the tool is worth the bucks
    I tried immediately the equipment after opening the package and the reading was way off but works perfectly after calibration, the process is just tedious with all the mixing and cleaning each pH level test. Once its ready and with the actual test result now I can do better action with our water supply. Just remember your chemistry lessons while preparing the device and I am wondering where can I get these sample sachets if next time if the tool needs recalibration, I don't want to keep these water mixtures around the house. Overall the tool is worth the buck.
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    Top reviews from the United States

    William Pickles
    5.0 out of 5 stars not accurate
    Reviewed in the United States on January 10, 2024
    Style: pH Meter YellowVerified Purchase
    tested compared to chemical tester, not accurate nor consistent
    18 people found this helpful
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    Amazon Customer
    5.0 out of 5 stars Works great
    Reviewed in the United States on April 15, 2024
    Style: pH Meter YellowVerified Purchase
    Works great for me. Good price. Get it.
    Helpful
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    Steven A. Lomba
    4.0 out of 5 stars I like it, but...
    Reviewed in the United States on March 10, 2024
    Style: pH Meter BlueVerified Purchase
    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.
    6 people found this helpful
    Helpful
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    Rowdy Roddy
    1.0 out of 5 stars So cheap it wasn't even worth returning once I figured out how imprecise and inaccurate it was.
    Reviewed in the United States on April 9, 2024
    Style: pH Meter YellowVerified Purchase
    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.
    5 people found this helpful
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    David Giffin
    5.0 out of 5 stars Easy
    Reviewed in the United States on April 19, 2024
    Style: pH Meter YellowVerified Purchase
    Easy to use. Nice case
    Helpful
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    Matt
    3.0 out of 5 stars I question the accuracy.
    Reviewed in the United States on February 7, 2024
    Style: pH Meter RedVerified Purchase
    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.
    4 people found this helpful
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    ncannam
    5.0 out of 5 stars love this thing
    Reviewed in the United States on April 10, 2024
    Style: pH Meter YellowVerified Purchase
    its accurate and cheap PREFECT
    Helpful
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    North Shore Aloha
    5.0 out of 5 stars pHun Times with the pH Master: A Comedic Journey into Water's Soul!
    Reviewed in the United States on December 31, 2023
    Style: pH Meter YellowVerified Purchase
    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
    18 people found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    J.L.G.G.
    1.0 out of 5 stars Mala compra
    Reviewed in Mexico on August 3, 2023
    Style: pH Meter RedVerified Purchase
    Se necesita calibrar, para poder usarlos, y los productos que requieren para la calibracion, son muy difíciles de conseguir, y por lo tanto, no he podido usarlos, para lo que los compré
    Report