Best pH Meter for the Money 2021

Enjoy Our pH Tester Reviews

Image	Name	Top Choices	Latest Pricing
	1. Apera Instruments AI311 pH Pocket Tester	Our Favorite	Amazon
	2. MiToo Digital High Accuracy Water Quality Tester	Premium Pick	Amazon
	3. Vantakool Digital pH Meter	Great Value	Amazon
	4. Apera Instruments AI223 Pen Tester Kit		Amazon
	5. Dr. Meter High Accuracy Pocket Size pH Meter		Amazon

Pricing of these Ph Testers Range Between $12-$68

Apera Instruments AI311 pH Pocket Tester Review

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The Apera Instruments AI311 pH Pocket Tester can measure water’s pH in the range of -2.00 to 16.00. It has an accuracy of +/-0.01 and is designed to be used in hydroponics, water treatment, aquaculture, pools, homes, and beverage making. This Apera Instruments pH water tester features Auto calibration and Auto buffer recognition. The replaceable probe can be easily installed, not to mention it comes with four types of probe to enable the user to complete any test.  

The backlight in the Apera Instruments AI311 pH tester can be green, red, or blue. The display is dual and indicates all the completed calibrations together with other readings that are stable. It has an Auto-hold function for stable values, so the user no longer needs to manually hold the measurements. The pH probe on this instrument is made from high quality glass and can be replaced. The tester shuts off on its own after not being used for eight minutes.

The Apera Instruments AI311 pH tester has a 2-year warranty on the meter and a 6-month warranty on the probe. It comes with a complete test kit that contains calibration solutions and bottles, storage solutions, batteries, and a portable case.

Pros

• Easy to read
• Accurate
• Easy to use
• Fits in the pocket
• Dual display
• Auto-hold
• 4 types of probe available
• Test kit included
• Made from high-quality materials
• Laminated instructions

Cons

• Not waterproof
• Difficult to calibrate
• Can be inaccurate when wet

MiToo Digital High Accuracy Water Quality Tester Review

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The MiToo Digital Water Quality Tester is perfect for both laboratory and home uses. It can test the water quality in pools, food, beverages, showers, acrylic bathtubs, and aquariums. This tester can be taken anywhere because it’s pocket-sized and easy to use. It can precisely determine the pH of water and if it’s safe for drinking. The temperature of the tested liquid is automatically compensated for because this tester features built-in ATC (automatic temperature compensation). This means it can determine pH for liquids at temperatures between 32 to 176 degrees F or 0 to 80 degrees C.

The MiToo digital tester can be calibrated with a single touch of a button. It features a glass probe that needs to be wiped clean with a soft cloth after each use. After replacing the batteries, the tester needs to be re-calibrated. Besides this, its electrode must be cleaned with distilled water before and after each use. This water tester offers reliable readings on an LCD display. It’s also very fast, so the user doesn’t need to hold it in the water for too long.

In the package, the MiToo Digital Water Tester contains the user manual, three calibration packets, a carry case, two 1.5V batteries and a 1-year warranty. The user manual is detailed and shows how the tester should be used in order to obtain the most stable and accurate readings.  

Pros

• User manual
• Fast
• Precise
• Easy to use
• Auto temperature compensation
• Accurate
• High quality
• Durable
• Batteries included
• Can be taken anywhere

Cons

• Glass probe can be fragile
• Display not bright enough 
• The switches are too sensitive

Vantakool Digital pH Meter Review

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The Vantakool Digital pH Meter has a measuring range of 0.00 to 14.00 pH. It features ATC (automatic temperature compensation), so it can test liquids at temperatures between 32 – 122 degrees F or 0 – 50 degrees C. Weighing only 1.83 ounces or 52 grams and measuring 6” x 1.1” x 0.5” or 15cm x 2.5cm x 1.3cm, it can be carried in the pocket anywhere. It’s perfect for testing drinking water, beverages, the water in pools, and at spas. In addition, it’s professional enough to be used in laboratories.

The Vantakool Digital pH Meter tests the water through an electrode sensor. It’s easy to calibrate with the Vantakool Buffer Powder and can tell the user if the water has the right pH just by pushing a button. More than this, it’s very fast. Its electrode needs to be cleaned with distilled water before and after each use. After the battery has been replaced or taken out, the tester needs to be recalibrated. The probe is made from glass, so it needs to be handled with care.

In the package, the Vantakool Digital pH tester also has a user manual, two 1.5V batteries, three pH Buffer Powders and the 1-year warranty. The user manual is easy to understand and provides all the information needed on how the meter should be used, in any conditions.

Pros

• Fits in the pocket
• Easy to read
• Batteries included
• Reliable
• Accurate
• LCD display
• Protective cap
• Auto-calibration
• Automatic temperature compensation
• Easy to use

Cons

• May not calibrate
• Looks cheap
• Can turn off while measuring 

Apera Instruments AI223 Pen Tester Kit Review

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The Apera Instruments AI223 pH Tester is one of the smallest instruments of its kind and can be used for aquaculture, beverages, aquariums, cooling towers, and bodily fluids. It’s available in 3-point and 1-point calibrations. It has a +/- 0.02 pH accuracy and features ATC (automatic temperature compensation), so the user doesn’t have to regulate the water temperature before using it. Since this tester is only 1 inch or 2.54cm high and 6 inches or 15.24cm long, it can be used to measure the water pH in very tight spaces. The probe is replaceable and slim, perfect for test tubes.

The Apera Instruments AI223 pH Tester has many intelligent functions like automatic shut-off, switching from F and C temperatures, and pH probe invalidation. The former function reminds the user to replace the probe so that the tester can function better. Further, it has indicators for calibration, meaning it’s easy to see if it has calibrated properly before use. Since it’s so small, it can be taken anywhere and carried in the pocket. Those who want to test the water or beverage pH when going out could surely use it.

The complete kit of the Apera Instruments AI233 pH tester consists of the meter, three premixed solutions for calibration, the portable case, storage solution, instructions, and CR2023 batteries. The warranty is 2-years for the tester and 6-months for the probe.

Pros

• Accurate
• High quality
• Dustproof
• Batteries included
• Fast
• Probe invalidation
• Automatic switch-off
• Fits in the pocket
• Automatic temperature

Cons

• Can get lost because it’s small
• Instructions difficult to understand
• Difficult to read the LCD display

Dr. Meter High Accuracy Pocket Size pH Meter Review

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The Dr. meter High Accuracy pH meter measures water pH very accurately and rapidly. It could be used at home or in laboratories. Its measurement range is 0 to 14 pH. Besides, it’s very easy to use since it only needs to have the electrode rinsed with distilled water, after which it can be put into any liquid for taking new measurements. With a simple push of the ON/OFF button, it displays the pH of the liquid. On the LCD screen that it features, this meter shows the temperature as well.

It’s easy to calibrate the Dr. meter High Accuracy Pocket Size pH Meter. It just needs to be submerged into pH 4.00, 6.86 and 9.18 solutions. After each measurement, the electrode must be cleaned with distilled water. All information on how this should be done is in the user manual. This meter comes with a handheld and lightweight case that can be taken anywhere. More than this, its dimensions are only 7.8” x 2.9” x 1.9” or 19.8cm x 7.3cm x 4.8cm.

The Dr. meter High Accuracy pH Tester comes with a carry case, the user manual, six calibration packets, a warranty card and four batteries. The warranty is for 1-year and the live support is available 24 hours, for a situation in which the meter doesn’t properly calibrate or doesn’t work.

Pros

• Accurate
• Fast
• Reliable
• Fits in the pocket
• 24-hour live support
• Batteries included
• Easy to use
• Calibrates fast
• High-quality

Cons

• The LCD display is difficult to read
• Not durable
• Not waterproof