Best pH Meters For Laboratories | 2020 Buyers Guides For New Scientist

best ph meters for laboratories - 2020 buyers guides for new scientist

As the world becomes more aware of pollution

and its consequences, there has been a greater

demand for eco-friendly products. The pH meter is

an example of such type of product. This article

will explore why it is important to use a pH meter

in laboratories and what are some of the best

options available on the market today.

best ph meters for laboratories - 2020 buyers guides for new scientist (pinterest pin)
Best pH Meters For Laboratories - 2020 Buyers Guides For New Scientist (Pinterest Pin)

What Are pH Meters?

ph checking in a marine aquarium with an electronic ph meter
instruments for testing ph. ph meter
Instruments for testing pH. pH meter

pH meters are used to measure pH value or

acidity of a solution. They work by emitting an

electric current into the substance which is being

tested, and measuring how much voltage it

generates in response. The pH meter then

displays this number as pH level measured

against pH scale values -0f 0-14 where lower

numbers denote greater acidity. pH meters are

used in various fields such as agriculture, food,

pharmaceuticals and medical research to name a few. The pH scale is logarithmic which means that each

unit on the pH meter scale represents ten times more or less acidity than its predecessor/successor

respectively. For example pH level of seven has ten times lower acidity than pH level of five, and pH level of

three is ten times higher acid.

Why Are pH Meters Used?

The pH meter is a powerful tool that can be used

to test pH levels of different substances in real

time. This helps scientists and researchers predict

whether the substance will corrode certain kinds

of materials or not, which makes it extremely

useful for laboratories working with such corrosive

substances like acids and bases (e.g., bleach). pH

meters give an accurate pH reading of a solution

in real time and can be used for

Digital waterproof and temp pocket tester in girl hand over blue swimming pool

continuous monitoring. Using pH meters also helps scientists to track pH changes over time, which is useful

if they are studying the reaction between two substances that have different pH levels (e.g., soil). In

addition, pH meters give accurate measurements of pH values even when there are very small

concentrations of pH in the solution. This helps researchers to ensure that their results are not faulty

because they can detect even small changes in pH level which could have a great effect on whatever

substance is being tested for pH content. The pH meter has become an indispensable tool for scientists

and laboratories working with chemicals, acids or bases as it gives accurate pH values of a substance in

real time. pH meters are used to test pH levels that could corrode certain materials, as well as monitor pH

changes over time which can give accurate results for research purposes.

What Are pH Meters Used For?

ph scale infographic vector illustration
ph checking solution in aquarium tank for healthy goldfish
PH checking solution in aquarium tank for healthy goldfish

The pH meter can be used to measure pH levels of

various substances in laboratories, for example it

is often used to determine the pH level of soil on

which plants are grown. pH meters can also be

used by doctors and nurses when performing

blood work or taking a patient’s vital signs, where

lower pH numbers indicate that there may be a

pH imbalance in the body. In addition pH meters

can be used to measure urine pH level which is a

good indicator of overall health.

How Do pH Meters Work?

ph testing device

The pH meter works by emitting an electric

current into the substance being tested. The pH

level is measured as how much voltage it

generates in response to this electric current

which can then be viewed on a screen or

digital display. pH meters are usually calibrated

for each use so that they give accurate readings

of pH levels, but calibration needs to occur

regularly and pH meters should never be exposed

to direct sunlight. Some pH meter models come

the ph Scale is a scale used to specify the acidity or basicity of an aqueous solution
The pH Scale is a scale used to specify the acidity or basicity of an aqueous solution

with a calibration probe which is used for this purpose, while others require the user to purchase their own

pH buffer solutions in order to calibrate them. Purchasing pH buffers can become an expensive investment

as they need to be replaced regularly depending on how often pH meters are used.

Types Of pH Meters

ph meter icons set
Ph meter icons set

There are two types of pH meters – glass

electrode pH meter which consists of a pH probe

with measuring tip, and the digital pH pen. The pH

probe contains a semi- permeable membrane

within it that separates an internal solution from

outside environment so when you put this probe

in the desired liquid sample, electric current flows

through it creating voltage proportional to pH

level. This electric signal is then transmitted via

wires inside the ph meter to display where on its

scale the measured value lies. Digital pH pens do not contain probes but instead use electrodes placed at

each end of strip made out of special material containing acid/base indicator dye each end of strip made 

out of each end of strip made out of special material containing acid/base indicator dye that changes color

depending on whether fluid being tested has higher or lower concentration compared to reference

solutions contained in the pH pen. More complex pH meters can measure pH level of multiple substances

simultaneously using a special probe called multi-probe. Some pH meters allow you input standard

solutions to calibrate them prior to use, while others work only with the reference solutions that come in

kit together with the device. Digital pH pens are more practical and easier to carry around for onsite

measurements than traditional glass electrode ph meter which is also bulkier but offers greater accuracy

compared to its digital counterpart due to fact it works by converting voltage into pH level displayed rather

than just reading color change of the dye indicator strip like most pH pens do. Also they contain all

required reagents needed for calibration so no need to buy. Also they contain all required reagents

needed for calibration so no need to buy extra solution kits or carting around bulky pH meter and

pH probes pH meters are used to measure pH value or acidity of a solution. They work by emitting an

electric current into the substance which is being tested, and measuring how much voltage it generates in

response. The pH meter then displays this number as pH level measured against pH scale values -0f 0-14

where lower numbers denote greater acidity. pH meters are used in various fields such as agriculture, food,

pharmaceuticals and medical research to name a few. The pH scale is logarithmic which means that each

unit on the pH meter scale represents ten times more or less acidity than its predecessor/successor

respectively. For example pH level of seven has times lower acidity than pH level of five, and pH level of

three is ten times higher acid. pH meters can be used to measure pH levels in laboratories or measuring pH

value of various substances for example it is often used to determine the pH level on which plants are

grown. Also they contain all required reagents needed for calibration so no need to buy extra solution kits

or carting around bulky pH meter and pH probes. 

Best pH Meters for Labs

When you are measuring the pH of a substance,

you want to make sure that it is accurate. A pH

meter measures how alkaline or acidic a

substance is. It has a range between 1 and 14, and

pH meters can either take direct measurements

with a probe or it can do a chemical analysis.

These pH meters come in a variety of shapes,

sizes, and styles, and they can be specialized.

People use them to measure the alkalinity in their

Electronic pH meter and calibration solution

pools. They are also used to create safe canned foods, and more advanced meters are used in labs. They

can measure dissolved oxygen, specific ions, and more.

What to Look for in a pH Meter

ph value scale chart for acid and alkaline solutions, acid base balance infographic
water quality tds meter icon. testing clipart isolated on white background
Water quality TDS meter

When you are measuring pH, the type of pH meter

you need depends on what you are measuring. In

a lab setting, you usually need a higher level of

accuracy. For example, if you are recording a pH

level to report to the government, the number

must be accurate within 0.1 pH. When you are

measuring pH, the type of pH meter you need

depends on what you are measuring. In a lab

setting, you usually need a higher level of

accuracy. For example, if you are recording a 

pH level to report to the government, the number must be accurate within 0.1 pH. If you need to be

confident about the ballpark number, a digital pH meter that is accurate within 0.2 pH is fine, but when the

number has to be specific, the meter needs to be accurate within 0.1 pH. Another important consideration

is the calibration of the pH meter. The calibration ensures that it is accurate when measuring the pH

against a standard. pH meters are calibrated by using colored liquids that have known pH values. The

temperature of the substance you are measuring also affects the pH level, so you need to calibrate a pH

meter with a substance the same temperature as the substance you are measuring. Other factors to

consider include the response time of the pH meter, the cost of replacing parts such as the electrodes used

in pH meters, and how easy the pH meter is to maintain and clean. The important thing is that when you

are measuring the pH in a lab environment, all of these factors lead to the accuracy of the substance you

are measuring, and you want to use a pH meter that has the highest degree of accuracy.

Best pH Meters for Lab Use

1. Vivosun pH and TDS Meter Combo

The Vivosun pH meter and TDS meter combo is

great for any laboratory applications. It has a full

measurement range that goes from 0 to 14, and it

offers quick, reliable readings. It is lightweight and

portable and comes with a protective case. It

comes calibrated with a1413 solution, and you

can go up to a year without having to calibrate it

a second time. This pH meter measures the pH

balances and the temperature value. It has a lock

function that makes it easy to read and record

the values. It comes with four display modes, and it has a nine-minute automatic shut off that protects

your battery. It offers accuracy within 0.01 pH, and it has a three-point automatic calibration button. The 3-

in-1 TDS EC Temperature meter is accurate within 2%, and it can test a range of substances. It is not

resistant to water, so you need to be careful with it.

Pros

Cons

2. Apera Instruments AI316

The Apera Instruments AI316 pH meter measures

the pH level accurately within 0.01 pH. This makes

it reliable and accurate for a range of

applications. It is a 5-in-1 meter that measures pH,

conductivity (EC), total dissolved solids (TDS),

salinity, and temperature. It has a high-

performance probe that does the measuring, and

it is replaceable. This is one of the most accurate

pH meters on the market, and it has a range from

-2 to 16 on the pH scale. Its accuracy is within +/- 0.01 pH, which gives you very reliable It also has an

automatic calibration function that is capable of detecting five different types of pH buffers. You will never

need to worry about the accuracy when you use this pH meter. It comes with a complete kit including

ready-to-use calibration solutions, calibration bottles, storage solutions, batteries, and a lanyard. It

also has a portable carrying case. The screen is a large LCD screen with three different backlight colors for

three different modes, and it a large LCD screen with three different backlight a large LCD screen with

three different backlight colors for three different modes, and it offers a dual display. This meter is quick

and reliable, and you can use it for most applications where you need to measure pH.

Pros

Cons

3. Apera Instruments AI209

The Apera Instruments AI209 pH meter  is

accurate and reliable, and it has a long battery

life. It uses four AAA batteries, which will operate

for up to 2,000 hours. It comes with a lanyard

and a durable carrying case, so you won’t have to

worry about it being damaged. It offers quick,

accurate, and reliable readings due to its

aperasensor. This pH meter also has a self-

diagnosis function that allows it to detect

malfunction and more during

calibration. This is one of the top-rated pH testers, and it comes with a complete calibration and probe care

combo kit. The included probe brush makes it easy to remove contaminants once you have completed

measurements. The carrying case helps you organize all of your solutions. It is accurate in temperatures

ranging from 32 to 122 degrees Fahrenheit. It has a sensor shield that protects the glass membrane from

damage, and it has a large, clear LCD display that makes it easy to read. This is a more affordable option

from Apera that is accurate, reliable, and easy to use.

Pros

Cons

4. HM Digital PH-200 Meter

The HM Digital PH-200 meter has an IP67

waterproof rating, which makes it capable of

performing a wide range of applications. It also

measures a large range of temperatures from 32

to 176 degrees Fahrenheit. This allows you to

measure the pH in many different solutions and

still obtain accurate results. It has three-point

automatic calibration with digital fine-tuning,

which makes it very accurate. It measures within

+/- 0.1 pH. This pH meter comes with an automatic

off function to preserve your battery, and it has a data-hold function to ensure that you get an

accurate reading. It also has a low battery indicator to let you know when you need to replace the battery.

It measures pH levels from 0 to 14, and it includes a storage solution embedded in a clear cap. It weighs

only 6.2 ounces, so it is lightweight and portable.

Pros

Cons

5. Pancellent Quality Test Meter

The Pancellent Quality Test Meter will tell you the

water quality accurately in just five seconds. It

measures the pH level with +/-0.01 pH, and it

offers TDS from 0 to 9990 ppm with +/- 2%

accuracy. It has automatic calibration, and it will

lock in your results with the push of a button. In

addition, it offers automatic shut offwhen it sits

idle. This meter is small and portable. It is a

professional level tester, and you can use it for

many different functions. It comes with one pH meter, a TDS meter, six calibration packets, and a user

manual. You simply press the button to power it on, submerge the meter and stir the solution, and wait for

the value to appear on the display. It is quick and reliable, and the display will give you the results.

Pros

Cons

6. Dr. Meter PH100-V

The Dr. Meter PH100-V is a portable pH meter that

is accurate and reliable. It has a three-point

calibration method, and it is easy to read. It

measures within 0.01 pH, and it has a one-button

lock so that you can read your results.

It has automatic temperature compensation, and

it uses a high-accuracy algorithm chip in the

electrode to ensure accuracy. You can use this

meter in a variety of applications and always

count on it to be reliable and quick. It covers the

full range of pH from 0 to 14, and it works in temperatures from 32 to 122 degrees Fahrenheit. It is

affordable and works well. You can use this meter in a variety of applications and always count on it to be

reliable and quick. It covers the full range of pH from 0 to 14, and it works in temperatures from 32 to 122

degrees Fahrenheit. It is affordable and works well.

Pros

Cons

Why Do pH Meters Need To Be Calibrated?

  • pH meters need to be calibrated regularly because the pH of water changes
  • pH meters can become inaccurate if they are subject to high temperatures, humidity levels, or other environmental factors.
  • The calibration solution for pH meters is 0.01 pH at 25 degrees Celsius (77 Fahrenheit). It should only take a couple drops of this calibration solution to calibrate your meter once you have removed it from storage and after it has had time to adjust its temperature outside the case which could affect accuracy until it reaches room temperature.
  • pH level that is most ideal for growing plants so checking pH levels on a daily basis ensures that your plants will get what they need when they need it . You’ll want an accurate tester with a large pH range and a readability of .01 pH or better.
  • The pH level that is most ideal for growing plants is around

pH meters can be recalibrated at home with 0.01 pH calibration solutions if necessary but it requires three

or more points of calibrations to ensure accurate readings because pH levels may drift over time due to

changes in temperature or other factors. pH meters should only need annual calibration if used frequently

such as once per month. If used weekly then monthly calibration would still likely be sufficient unless your

particular pH meter has some other guidelines that are different from monthly calibration intervals (e.g.,

every two weeks).

How Often Should pH Meters Be Calibrated?

ph value scale chart for acid and alkaline solutions, acid-base balance
  • pH meters should be calibrated regularly to ensure accuracy.
  • pH meters for laboratories need to be recalibrated at least once per month or as often as every two weeks, depending on frequency of use and how much the meter is handled.
  • The life span of a pH electrode can vary from one year up to five years if it is stored well and doesn’t experience too many temperature fluctuations.
  • If you calibrate less than once per week then yearly calibration may not even be necessary unless your particular pH meter has some other guidelines that are different from monthly calibration intervals.

Professional level tester, and you can use it for many different functions. It comes with one pH meter, a

TDS meter, six calibration packets, and a user manual. You simply press the button to power it on,

submerge the meter and stir the solution, and wait for the value to appear on the display. It is quick and

reliable, and the display will give you the results.

  • pH meters are generally calibrated before they leave the factory so that there is a baseline for accuracy
  • pH meters can be recalibrated at home with 0.01 pH calibration solutions if necessary but it requires three or more points of calibrations to ensure accurate readings because pH levels may drift over time due to changes in temperature or other factors
  • pH meter should only need annual calibration if used infrequently such as once per month. If used weekly then monthly calibration would still likely be sufficient unless your particular pH meter has some other guidelines that are different from monthly calibration intervals (e.g., every two weeks).

Conclusion

When you need a pH meter for labs, it is important that it be accurate, reliable, and easy to use. The pH

meters listed above fulfill those requirements and are more accurate than pH test strips. You can choose

one that is more expensive, durable, and loaded with extra features, but there are also a few that are

affordable and still do the job quickly and accurately.

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