People nowadays are more health concerned than before. You will always want to eat and use that kind of products that are suitable for your body. Measuring the Ph level of a material is very important as they have a lot of impact on your body.
A Ph meter or potentiometric Ph meter will let you know the Ph level of any substance within a second. They are more accurate and easier to use than the traditional method used before. In this article, you will get the whole picture about the Best Ph Meter.
What is a Ph Meter?
Ph meter is a scientific measuring tool that can measure the Ph level on a substance like liquid or solid. They measure the amount of hydrogen-ion in any water-based solution. They calculate the data and show the result in the Ph level.
An earlier special paper like litmus paper was used to detect Ph level of a solution. They change their color into a different state according to the Ph level. There was a color scale indicating Ph level of different color. But they are not accurate and there was a lot of chance of error.
There are different types of Ph meter. Mostly all of them nowadays are digital that show the Ph level on a digital display and uses the different electronic sensor to measure the Ph level. They are like pencil shape and battery powered.
They have a probe that you need to put on the solution you want to measure the Ph level. There is a digital display where you will see the Ph level in Digit. There is some circuit to calculate and sense the data and a neutral solution of Ph level 7. These meters are normally calibrated to give accurate measurement and also can be calibrated later manually.
Our Recommended Best Ph Meters
There are a lot of Ph level indicators or digital Ph meters manufactured by different companies. But choosing the best is not too easy. All of them have different facility and features. Here some of the best Ph level meter on which you can rely to get the best output.
1. VANTAKOOL Digital PH Meter
VANTAKOOL Digital PH Meter is a quality product with the astonishing design. It has the range of 0-14 Ph level to be measured. It is suitable for household and laboratory uses for measuring Ph level of a wide range of solution with a different application.
It has a very sensitive electrode sensor that will measure the acidity with a precise accuracy and at a very fast rate. The most advancing fact about this Ph meter is that it has auto calibration technology. That means it will calibrate its own every time you press the calibration button.
That ensures you to have the accurate and perfect reading every time you measured Ph level of any solution. It can also adjust itself to the solution temperature that makes it faster to give the reading. The meter is so light in weight and has a strong and solid body.
The meter is easy to use. You just need to uncap it and put the probe in the solution. It needs two battery to power it. The display is clear and vivid that you can easily understand the reading even in low light. The probes are made of good metal and they also survive against any acidity.
The bad side of the meter is the reading most of the time fluctuate. While reading its hard to have a confirm result with this meter. Again, it will give you a different reading for the same solution if you measure twice. The calibration works well but it comes difficult when you are using for a long time.
2. Dr.meter PH100-V 0.01 Resolution pH meter
Dr. Meter PH100-V 0.01 is a digital miniature PH meter with ATC (automatic temperature compensation), high accuracy that can measure the pH value of water or any kind of solution. This pH meter is most commonly used in the realm of hydroponics, laboratory, for educational purpose, swimming pools or for water treatment.
For using ATC this meter can measure the temperature. It has a battery compartment at the top of the meter, a backlit LCD, calibration button, hold button, on/off switch, ATC electrode and sensing electrode covered by a protective cap. The measuring range of the meter is from 0 to 14pH.
In backlit LCD you can see the pH value, as well as the temperature value and the working temperature, is button cell battery is needed for power up this kit. You can take it with you wherever you want to go, measure pH to any solution. For a chemical experiment or in study purpose anyone can use it easily. There will be a user manual with the purchase.
But after some month there can be a problem to maintain the accuracy depends on how you deal with it. A Difficult to calibrate it. Overall for the price range, the thing will help you a lot in the work you need.
3. Jellas Pocket Size pH Meter
Jellas Pocket Size pH Meter is specially made for a wide range of uses in home, office and in the laboratory. The size of the meter will give you an extra advantage of using this meter in any situation with an easy process. The size and weight of the meter are very user-friendly and make it an affordable one.
The meter is highly accurate and with a wide range. The meter took a very low time to show the reading. That allows you to measure instantly accurate pH level of any kind of solution with this meter. the process of measuring the pH level is very easy that anyone can measure with this one.
You just need to open the protective cap and dip the electrode in the solution after pressing the on/Off switch. The electrode is a glass probe that increases the accuracy and measuring capability but at the same time increase the risk as it is used to be little fragile when you are using it.
The meter has no auto calibration button. So, you have to calibrate the meter by screwing a screw on the body. This process is not that much accurate and there will always raise a question about the accuracy of the calibration process.
4. Apera Instruments AI311 PH60 pH Pocket Tester
Apera Instruments AI311 PH60 pH Pocket Tester is a well designed and sharp pH meter that will allow you to get the reading of pH level of any kind of solution at any kind of situation. One of the astonishing facts is that this meter range is quite different than the ordinary pH meters.
The range of the meter is -2.0 pH to 16.0 ph. That means you can measure pH level for a wide range of solution. The accuracy of the meter is high and it can also measure the data at a fast rate. The colorful display has 3 backlit that will give a colorful feeling while working with this and also you can get the reading in low light condition.
The meter has an auto-calibration feature. It can calibrate it for up to 3 points by its own buffer and ensure that you will get the accurate reading always. It has a temperature sensor that adjusts the meter to different temperate to give you the real and perfect reading at any temperature.
You can also measure the temperature. Here is an indicator to show you when the reading is stable that will help you to understand the real reading. But the problem of this meter is it’s backlit on the display may not work well after using for a time. That will create a problem to take the reading from the meter.
5. Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester
Apera Instruments AI209 PH20 Value Waterproof pH Pocket Tester is another great pH meter with some extra facility. This pH meter is waterproof that increase the durability and lifetime of the meter. it will definitely save your meter to be ruined off.
It has easy and auto calibration process that can also recognize the buffer. It has also auto temperature compensation technology that increases and ensures the maximum accuracy of the meter at any kind of situation for any kind of solution.
The meter is specially made with a low impedance that means it can measure the voltage difference inside the meter more accurately and faster. It also ensures a high response rate. It has a rugged carrying case and buffers for better calibration.
It can auto recognize the stable condition of fluctuating data. The display is big and clear. The meter is battery powered and will give you a longer usable time. The pack has two buffer solution made by the manufacturers that will assist you while calibrating the meter.
This meter cannot give an accurate reading for distilled water or deionized water. Even if you put the probe or electrode in such kind of the solution, then it will damage the metal of the electrode. The element used in the electrode is not up to the mark.
6. PH Meter ORYCOOL 0.01 Resolution Digital PH Tester
PH Meter ORYCOOL 0.01 Resolution Digital PH Tester is an accurate and faster pH level tester. It will give you the data at a fast rate within seconds and the sensor combination is good enough to give accurate data.
This meter has auto calibration facility. You can calibrate the meter by just pressing a button. But it needs buffer powders that are not included inside the meter. the meter is used for a wide range of application and the pencil shape let you use it as a portable meter.
To get the reading you just need to dip the electrode in the liquid and the large display will show the pH level. The display is clear and sharp that you can also read the data in low light with perfection. The conductivity and accuracy rate of the meter is good. It is powered by a battery so that you can use it in any kind of situation.
The meter has no on/off button. Just dip it on the liquid, it will automatically on and give you the pH level. Again, if you are not using it for a period, then the meter will automatically shut off. That will definitely save the battery power and ensure a longer lifetime.
The problem is that after using so many times, the accuracy of the meter decreases by time. When you are not measuring, instead of showing zero, it showed a number even after you calibrate the meter, so the data showed that is surely an error.
Factors to Consider before Buying Best Ph Meter
To get the Best pH meter, you need to look up some factors that will make them a perfect tool for your work. These factors will normally make the meter more efficient and will ensure that it will give you a better service for a long time. They are given below.
Electrode: Electrode of the pH meter is the most important parts as it actually takes the ion from the solution and sends the information to the circuit. The electrode is placed in a different solution of acid or base solution.
The electrode should not be corrosion after using for a longer period. So, the metal used to make the electrode needs to be more durable to survive against any kind of situation. They need to be strong and should be easily washable. They also need to be smooth and perfectly sized.
Calibration: The calibration process for a pH meter is very necessary to get the accurate reading. The calibration process needs to easy and it should reset the pH meter to the accurate state. There is a lot of method of calibration.
Some pH meter has own calibration feature where some other need to be calibrated by the help of different buffer solution. Whatever the method the pH meter should be accurately calibrated and the process also need to be user-friendly.
Calculating: The calculation process of the pH meter depends upon the circuit and other IC’s. The meter should give you the result within seconds. It should not fluctuate the result and should give the same result every time you measure the same solution unless there is any change on the pH level.
Display and Structure: The durability depends on the structure and element used to make the meter. the display of the meter needs to be large enough and clear. AT the same time, it may have back led that will help you to read the data at low light.
How a Ph Meter Works
A digital Ph meter works with the help of some electronic sensor and circuit elementary. There are one or two probes in the Ph meter. You need to put the probe in the solution. There is a neutral solution of Ph level 7 inside the glass probe.
There are hydrogen ions in the solution. When you put the Ph meter probe in the solution, then some hydrogen ion comes to the probe and replace some of the metal ions. This happens inside the surface of the glass probe. This is called ion exchange process.
The number of hydrogen ion exchanged in this process is proportional to the acidity level or ultimately to the Ph level of the solution. There becomes a difference of acidity in the two ends of the glass probe. That results in a very small polarity difference in these two portions.
The sensor inside the Ph meter detects the number of hydrogens ion-exchanged by measuring the polarity change. It measured the voltage difference and convert this reading into Ph level by the calculating circuit. This is calibrated while the meter was made that for which voltage difference which Ph level it needs to show.
How Ph Meter is Calibrated?
Calibration of a Ph meter is a very important task to get the accurate reading when you measured with that. The calibration process may differ for different models. Some meter has own auto-calibration feature. You just need to press a button and the meter will calibrate it with the help of a neutral solution inside the meter.
Some of the meters need external calibration. For this kind of calibration, at first, clean the electrode with distilled water properly. You need to prepare 3 kinds of buffer solution of Ph level 7, and one greater than and 7 and other lower than 7. The Ph level of this solution you have to know.
First, measure the Ph of a neutral solution with the meter and take the reading. If it is not showing 7, then reset the reading to 7 with the manual calibration button. Then take the reading of known buffer solution of Ph level greater than 7. Reset the reading by the same process.
At last, measure the Ph level of the other solution and reset it also as you know the actual Ph of that buffer solution. By this, the Ph meter will adjust with the reading and will be calibrated.
You can also calibrate Ph meter without a solution. You can use vinegar or baking soda to calibrate the meter. The Ph level of this substance is known. You can also use the auto-calibration process and then reset the Ph level of the meter with the help of the calibration button.
How to Use a Ph Meter Properly?
To use the Ph meter accurately, you need to calibrate the meter at first properly. You need to make sure that the probe and other parts are working well. Then wash the electrode probe with distilled water. Another thing you need to consider that Ph meter measurement is depended on the temperature.
Many meters have a built-in temperature sensor and adjust themselves but if your meter hasn’t then you need to adjust the temperature to get the accurate reading. You need to be careful with the electrode as it may be any time little fragile while you are using this.
Just put the electrode on the solution for a little bit moment and the meter will show the Ph level on the display. If the reading is not shown on the Ph scale, then there may be a “mode” button which you need to press.
After you finished the measurement don’t forget to wipe the probe with a clean and soft small cloth and after washing with distilled water. At last, remove the battery keep in the case.
Frequently Asked Questions (FAQs)
There may arise a lot of question on your mind before buying a pH meter. Here some of the frequently asked questions –
Q. Is pH meter temperature sensitive?
Ans: yes, the measuring process of the pH level of a solution is dependent on the temperature of the solution and of the environment. Many pH meters have a temperature sensor inside the meter to adjust themselves to the temperature. If your meter hasn’t, then you need to ensure the perfect temperature of measurement.
Q. Is there any solution inside the electrode?
Ans: Yes, there is a neutral solution of pH 7 inside the electrode to compare the solution with this neutral solution to measure the pH level.
Q. What should I do if the meter giving me wrong reading?
Ans: If you think that your pH meter is giving wrong reading then you can calibrate the meter to adjust it. Then it will give you an accurate reading.
Extra tips: You can Measure the humidity and temperature of your room or garage using the best digital hygrometer.
In our daily life, pH level of any solution like water, food, cosmetics and so on have a great impact on our health and body. So, using them by knowing the pH level is a very good practice. If they are not on the best pH level, then it will harm you.
pH meter will help you to get the information about the pH level of anything. This meter is easy to use in everyday life and have a very high accuracy to give you the perfect pH level. So always use the stuff at the ideal pH level and keep yourself healthy.