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
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Availability:
In Stock.
Arrives
Saturday, Nov 15
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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 : 6.54 x 2.13 x 1.22 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: #991 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Lab pH Meters
#2 in Lab pH Meters:
Customer Reviews: 3.9 3.9 out of 5 stars 11,262 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Nov 15
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: pH Meter Yellow
I was surprised at the price but curious as I am used to paying a bunch for blue labs. The fact that it worked great and was accurate makes me wanna buy a few more just to have them Incase I ever need to double check my ph or if a friend needs one. Update: Product started to not read pH correctly and as I looked at the bulb, it was broken. I did not bang it on anything or do anything to it to causes issue but it broke. I’ve had labs in the past and I realize this is a vape brand ph meter But I don’t understand how the bulb would’ve broke. For the first few readings at read perfect. I’m not sure what happened
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Reviewed in the United States on July 11, 2024 by Jose gringo
Style: pH Meter Yellow
easy to use and works nice to check PH in my hydroponic system
Reviewed in the United States on July 9, 2025 by Humberto
Style: pH Meter Yellow
I’ve had one of these for several years, and it worked fairly well. After about 3 years it became erratic and unreliable, so I bought another one. Calibration doesn’t seem to work; the instructions say to “contact us”, but there is no contact information. This one reads about .15 low across the range of values, so I’ve just made a note of that, and it’s close enough for my purposes.
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Reviewed in the United States on July 11, 2024 by Frank Bell
Style: pH Meter Yellow
This is a real piece of #$%@. And if it was cheaply made and functioned properly, then great! Who cares? But the results are all over the place. Imagine having a meat thermometer and you put it in your chicken thigh to see if it was safe and it bounced between 145° and 171° just while holding it still. And then you wiggled the thermometer and it went to 180° before bouncing slowly back to 164°. That's what using this pH meter is like. It inspires zero confidence. I'm not sure I've ever returned a $7 item before, but I'm returning this one.
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Reviewed in the United States on June 12, 2025 by SedgeVS
Style: pH Meter Yellow
Antifreeze tester it works not sure if it’s correct, but it works
Reviewed in the United States on July 26, 2025 by 2176902212
Style: pH Meter Yellow
Though straightforward and simple to use, this pH meter just behaves erratically in my hands. I'm a lab scientist, and I've used multi-hundred dollar meters many times. I don't expect this to be that. But I do expect it to give -roughly- the same measurement each time I use it, and to behave predictably. Even after it's been calibrated with the included standard buffers, this thing's reading drifts like crazy. I'm using it to pH-adjust nutrient solution to water my houseplants, and it takes a long time to stabilize once you put it into the solution. Even when (if?) the pH value settles on a single reading, the values don't always align with other readouts (3-pad pH dipsticks and General Hydroponics 5.5 - 8 pH solution). This meter does broadly correlate with approximate pH. It's not a nothing-meter. Maybe it would be more stable in strongly buffered solutions, or useful for science demos comparing strongly acidic or alkaline substances. But for my needs, it's too noisy and unreliable to trust my plants' health to.
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Reviewed in the United States on June 6, 2024 by R. A. Fulcher
Style: pH Meter Yellow
Item came early, which is always good. Well packaged in a box, not just a bag. Easy to use. This one is my second in 3 years. Only thing...the box for a storage container was checked off as if it was provided, but there was none. I didn't care because I kept the one from my first one.
Reviewed in the United States on June 12, 2025 by JOHNKIN
Style: pH Meter Yellow
Worked great for making homemade apple cider or fruit vinegar. Will be using this all the time instead of test strips.
Reviewed in the United States on July 6, 2025 by Omegaman