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🌡️ highly accurate digital ph tester pen for water hydroponics – pocket size, 0.01 resolution, 0-14 ph measurement range – ideal for household, drinking, pool, and aquarium (yellow) logo

🌡️ Highly Accurate Digital pH Tester Pen for Water Hydroponics – Pocket Size, 0.01 Resolution, 0-14 pH Measurement Range – Ideal for Household, Drinking, Pool, and Aquarium (Yellow) Review

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Revainrating 3.5 out of 5  
Rating 
3.3
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Description of 🌡️ Highly Accurate Digital pH Tester Pen for Water Hydroponics – Pocket Size, 0.01 Resolution, 0-14 pH Measurement Range – Ideal for Household, Drinking, Pool, and Aquarium (Yellow)

【How to use calibration】Press 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 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.

Reviews

Global ratings 6
  • 5
    2
  • 4
    2
  • 3
    0
  • 2
    0
  • 1
    2

Type of review

Revainrating 5 out of 5

Easy to read and better than test strips

larger numbers than my old one that broke (different brand) which made it easier to read. I'm assuming it's accurate when new as I haven't done any basic checks yet. I recommend it. An electronic meter like this is much better than test strips, which I believe are more of an estimate of pH than an actual measurement. Just my opinion.

Pros
  • quality construction
Cons
  • I don't remember but there were some

Revainrating 1 out of 5

Low price and very accurate!

This is a great pH tester for the price! Most units are overpriced. It's affordable and works just as well. It's accurate as long as you calibrate it properly. It comes with a calibration solution, which is a plus. I wish it had more solution packs because they need to be calibrated regularly. I highly recommend this PH pen, I give it 5 stars!

Pros
  • Best
Cons
  • Clarity

Revainrating 4 out of 5

Works well with analytical instruments

You need 750ml of distilled water to calibrate the meter (3 different powder solutions). The process takes about 10 minutes, then a small amount of distilled water to clean after completion. Follow the simple instructions and you'll get instant readings with amazingly accurate results. I just replaced my old meter (same model) after a year of daily use, it started reading a little slower. My next counter in about a year will be the exact same model.

Pros
  • Looks good
Cons
  • There are disadvantages

Revainrating 5 out of 5

Testing, measuring and verifying the learning curve

When I first tried to use this I thought it was broken or just didn't work. I even ordered more calibration solution packs, thinking that the ones that came with the meter might be defective. While waiting for them to get here I watched some YouTube videos on how to use them, now I'm getting pretty accurate readings. I recommend learning how to calibrate and storing solutions in labeled dishes for a few days until you are comfortable with calibrating. You will most likely find that you are…

Pros
  • substance analysis instruments
Cons
  • weak

Revainrating 1 out of 5

Garbage! Don't let the high ratings fool you!

I returned this garbage. I have very alkaline tap water. I've known this for a while and bought this pH meter to deal with this situation when I was trying my hand at hydroponics. I took it out, followed the instructions and washed it with distilled water. Then I did the first tap water measurement. The reading was erroneous, but averaged 4-5. Remember my tap water is alkaline. So I figured I need to calibrate it and everything will be fine. So I carefully followed the instructions (which are…

Pros
  • pH meter
Cons
  • I don't remember but there was something

Revainrating 4 out of 5

IMPORTANT: Storage of glass bulb pH probes

So far so good, the meter comes with 3-point calibration buffers. Seems great for my purposes. Also, it cost $12. However, the probe's glass cover was shipped dry and the instructions do not advise the user on how to properly store the probe. My advice to anyone who has purchased this gauge is to fill the black cap with a small amount of Buffer 6.8 when storing it so the probe never goes dry. Ideally, a separate storage solution would be available, but a pH four or seven buffer solution would…

Pros
  • Industrial & Scientific
Cons
  • boring packaging