TOWALLMARK Digital PH Tester 0.01 Resolution High Accuracy 0-14pH

  • Color LCD screen design, makes every reading clear;
  • Sensitive bulb built reaching a true level of 0.01 resolution;
  • ATC accurate calibration at any temperature of 0℃- 60℃;
  • Our meter has small size and low weight;
  • Safe and convenient can be charged at any time. 

Color: As the Picture
Sale price$49.99


Color LCD Screen Design
Compared with other monochrome backlit screen test pen, ours is updated and upgraded version with a colored screen LCD design, which makes every reading clear and easy to read and not easy to be confused. When pH value is lower than 2 or higher than 12, the reading on screen will turn red to remind you.

Sensitive Bulb Built
Our core of the pH meter is electrode and the core of the electrode is bulb. The digital pH tester bulb made by blue effect technology is blown at high temperature of 1000℃. This design can fully respond to H+ ions in the solution.The bulb glass film uses a low-impedance glass sensitive film and the reaction speed is also improved, reaching a true level of 0.01 resolution.

ATC Accurate Calibration
Thanks to built in automatic temperature compensation (ATC), which can accurately determine pH value of the sample at any temperature in a range of 0℃- 60℃ (32℉ - 140℉), you can get the accurate pH value without taking care about the influence of water temperature.

Practical for Testing
Our meter has small size and low weight, looks like a normal pen, easy to be carried and convenient for you to put in your pocket or bag when go out. Ideal for residential or commercial use, drinking, pools, aquariums, liquid food, laboratory, aquaculture and hydroponics, you can test any 0.01-14.00pH liquid which you want to test and get readings timely.

Rechargeable Function
USB charging port on our digital pH tester adopts Type-C charging interface, hidden waterproof design, equipped with a charging line - safe, reliable, simple and convenient, can be charged at any time, don't worry about the situation where the battery will run out when you use it in an emergency. Just unscrew the cover on top, then connect to charge, so convenient and fast.

Towallmark Digital pH Tester 0.01 Resolution High Accuracy 0-14pH

A pH value of 7 means a substance is neutral.

The lower value indicates acidity and a higher value is a sign of alkalinity.

To better understand the range in pH, take a look at these:

Apple juice 3, orange juice 3.5, coffee 5.5, milk 6.2, baking soda 8.5, soap water 10, bleach 12.

Our meters are pen-type design, easy to carry and operate, can measure pH and temperature, suitable for tap water source detection, aquaculture, environmental protection, printing, dyeing, electroplating and scientific research institutions.

They can widely be used for many application of water quality testing: pure water production and drinking, tap water, well water, sea water, fish tank water, swimming pool water, etc.

Towallmark Digital pH Tester 0.01 Resolution High Accuracy 0-14pH


Voltage: 3V

Accuracy: ± 2%

Resolution: 1PPM

Range: 0 ~ 9990PPM

Battery: 2 Universal Button batteries

Our TDS meter is equipped with low power backlight technology, which can easily test water at night or in a dark place.

It can also be used to distinguish between drinking water and non-drinking water.

Package List: 

  • 1 x Towallmark Digital pH Tester 

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      Customer Reviews

      Based on 35 reviews
      Easy, Accurate, and worth the price.

      There are cheaper and small pen style ph testers out there but they are not as ggod as this one. I bought this to test the ph in my pool ( and my fish tank aquarium ) and get excellent results in just a few seconds. Just press button and I get immediate readings.Now that I have this I test my drinking water as well! Nice handy product to own. Overall, sturdy quality and amazing value for the price.

      David Masonis
      Easy to use out of the box.

      I purchased this meter for a college brewing project which measured pH from wort fermenting with different yeast. After a quick read through the directions the meter was easy to use. I was concerned with using the meter on a boiling wort. I ended up taking a sample out, allowing the sample to cool, then took a pH reading. Very intuitive in the buttons and markings.

      Elinor Fultz
      The best PH meter I've ever tried

      I've been using this PH meter for about 4 month now and I have to say it is very reliable! The accuracy is on point and I use it constantly to check the ph in my hydroponic system. Since I started using it I had to recalibrate it a couple of times ( the calibration solution comes with it ) to make sure it is as accurate as possible.

      Walter Gruer
      Glad I went ahead and spent the extra cash to get a better tester.

      So far there is nothing I dislike about this tester. I’m used to using the $10 cheap testers… I got sick of them breaking or taking a long time to give me a reading… I was fed up, so I sprung for this ph tester. Only time will tell, but right now, she’s working great! Easy and fast to read. Feels more durable. But I’m tough on my tools… so 6 months from now? A year? If it makes it a year . This would be the best product ever! I’ll let you know!

      Great PH meter at a value

      I am a brewer and have gone through several PH meters in my time. Several of them jump around so much and never settle on a number. This meter has been great. You still need to let it set in the test for a minute but it gets there. I believe the accuracy has been on point and it is easy to read. It is easy to clean which is also a plus. I will be ordering a second one to have on hand.

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      Gaomon guarantees all products bought from Gaomon with a 2 Months to 2 years warranty against defects in quality ( include extra warranty longest to 1 year ). Different suppliers and different brands of products have different warranty times, please consult our customer service

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