Your cart is empty.
Your cart is empty.Product Description
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
How to use:
- Take off the pen cover and clean the electrode with pure water
- Put the pen probe into the solution, taking care not to exceed the water level
- Turn on the switch, stir gently, and wait for the reading to stabilize
- After the reading is stable, read the displayed value
- 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
Pay attention to the calibration sequence (6.86-4-9.18)
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
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.
Jose gringo
2025-08-16 13:47:46
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
Claudia✨
2025-08-04 20:53:30
I bought this and have been testing my bettas tank with it. ITS NOT ACCURATE. It has been telling me the PH is at 8+ so I treated for high ph and turns out my ph is actually at a 6 now which is way too low and my betta is sick!!! HORRIBLE! VERY DISAPPOINTED
justin
2025-07-26 17:21:02
I recently purchased the PH Meter for Water Hydroponics Digital PH Tester Pen and I am incredibly satisfied with its performance. This pocket-sized device has a measurement range of 0-14 PH, making it versatile for use in household drinking water, pool maintenance, and aquarium upkeep.What sets this PH tester apart is its high level of accuracy, with readings up to 0.01 PH. I found this to be very informative as it allows me to closely monitor the PH levels of my water sources with precision. The digital display is easy to read and the pen design makes it convenient to carry around.Overall, I highly recommend this PH meter for anyone looking to maintain optimal PH levels in their water sources. It has proven to be a reliable and user-friendly tool that has made a noticeable difference in the quality of my water.
becky watkins
2025-06-24 12:25:47
This is a piece of detritus. You know, the stuff the fish leave on the bottom of your tank. And I don't mean the food. It is actually worse than an off brand pH calibration solution I purchased. Amazon, you need to start carrying some quality products. I have been in the aquarium hobby since I was five. Started with a Trinidad guppy, a minnow and a 1 gallon Mason jar. I am 76 now and I have seen some trash over the years but these last two purchases were horrible. All I wanted was a pocket meter for a quick check. Followed the directions to calibrate. Carefully measured 250 ml of distilled water and mixed the powder until completely dissolved. Waited the five seconds and counted the 3 flashes and cleaned with distilled water, dried and moved to the next calibration solution. Went through all three. Just for kicks and giggles I put the meter in some water from my saltwater tank. The pH in it usually runs 8.1-803. Not with this thing. Nope, it was 4.6. I no longer trust the reviews because I don't know if I am even getting the same product. Evidently, there is a lack of quality control in the manufacture of the two items I purchased. This meter and an off brand calibration solution. By the way, I tried to use that solution to calibrate this meter after it failed using the powder than came with it. It was still so far off it is worthless. Between the two it was close to $50 wasted. Oh well.
Nichole B.
2025-05-24 12:50:41
Good quality for your money.Easy to use.DurableHeavy dutyBrought my tank to where it needed to be with easy use and no extra work.
R. A. Fulcher
2025-05-20 19:45:32
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.
Moises M. Alipala III
2025-05-13 12:35:32
Usefull
Yankee Belle
2025-05-12 15:14:08
I bought this after seeing this type of product recommended on You Tube by the lady from Rosewood Homestead. I was frustrated using litmus paper to test the ph of the products I was canning because it never read any different no matter what I tested. This product is a god send.I now feel comfortable water bath canning knowing the ph of my product is in the safe zone. It is calibrated by the factory and I’ve had it a year and it is still calibrated. It comes with products to calibrate on your own but I really don’t understand the instructions so I’m thankful I haven’t had to do that. It’s easy to use, and has a sturdy case.
J.L.G.G.
2025-03-13 18:38:45
Se necesita calibrar, para poder usarlos, y los productos que requieren para la calibracion, son muy difÃciles de conseguir, y por lo tanto, no he podido usarlos, para lo que los compré
Ahmad El Morsy
2025-03-05 14:28:38
جيد للي Ùاهمله على قد سعره
اسوء منتج اشتريتو ÙÙŠ Øياتي
2024-12-31 10:16:33
المنتج اللي وصلى مش هو اللي ÙÙŠ الصور ÙŠ راجل يمØترم والمنتج مش شغال اصلا ÙˆØرÙيا Øتة خرده
Amira
2024-12-26 13:00:27
مش Øلو الورق اØسن منه ولو القراءه باظت لازم تشتري اكياس Ùيها Ù…Øاليل لقياس ph تاني عشان تظبطه والمØاليل مش موجوده خساره Ùيه الÙلوس
Recommended Products