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The 8 Best portable ph meters of 2025

Are you trying to find portable ph meters among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling portable ph meters on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 11 hours of research and did 22 portable ph meters tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best portable ph meters you can buy today

No. 1
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display
  • NOTE: A few drops of water are added to the electrode cap before the product leaves the factory. This is to maintain the sensitivity of the electrode. Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap
  • Accuracy: 0.01 pH; range: -2.00 to 16.00 pH, 32 to 122˚F (0 to 50˚C); Auto. Power-Off: 8 minutes without operation
  • Easy 1-3 points auto. calibration, recognizes 5 types of solutions (1.68, 4.00, 7.00, 10.01, 12.46); Auto Temp. Compensation (ATC) ensures accuracy in various temperatures (32-122˚F)
  • High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, environmental monitoring, cooling towers, beverage, etc.
  • Large LCD with 3 backlit colors (indicating different modes), dual display of temp./pH, and reminders of completed calibrations and stable readings
  • The smiley icon indicates stable readings so you won't have to guess when is the right time to record the measurements
  • COMPLETE KIT with READY-TO-USE calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a rugged portable case
No. 2
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy
  • Easy auto. calibration with buffer recognition; auto. temp. compensation (ATC) ensures accuracy in various temperatures (32 to 122F)
  • Backed by Apera quality pH sensor with low impedance, ensuring high response rate
  • Comes in a rugged carrying case with pH 4&7 buffers and a lanyard
  • Auto recognition of stable values improves consistency, so you don't have to guess when to manually hold measurement
  • Up to 2000 hours' continuous operation, powered by AAA batteries
SaleNo. 3
APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit
932 Consomer Reviews
APERA INSTRUMENTS AI316 Premium Series PC60 5-in-1 Waterproof pH/EC (Conductivity) /TDS (ppm) /Salinity (ppt) /Temp. Multi-Parameter Pocket Tester Kit
  • Measures pH/EC/TDS (ppm)/Salinity/Temp. in a quick and professional manner
  • Replaceable multi-parameter probe with easy installation
  • When the smiley face icon stays on screen, it's the right time to record the measurements.
  • LARGE Clear LCD screen with 3 backlit color (indicating 3 different modes), dual display of temp. + pH/EC/TDS/Salinity, and icons of completed calibrations and stable readings
  • Complete kit with ready-to-use calibration solutions, calibration bottles, storage solutions, AAA batteries, and a lanyard all in a portable carrying case
No. 4
Apera Instruments PH400 Portable pH Meter Kit with Pre-mixed Buffers, 0.01 pH Accuracy, 0-14.00 pH Measuring Range, 3-Point Auto Calibration, 3' Probe
  • Comes with an all-in-one pH/temp. electrode, measuring pH and temperature in a quick and accurate manner
  • 1-3 points of Auto. pH calibration with self-diagnosis
  • Large LCD displays pH/temperature simultaneously along with indicators of stable readings and successful calibrations
  • Comes with a complete test kit with 3 pre-mixed buffers in a rugged carrying case.
SaleNo. 5
Oakton AO-35614-30 pH 150 Waterproof Portable Meter with SJ All-in-One Electrode
  • Product Type: pH meter
  • Meter style: portable
  • Range (pH): -2.00 to 16.00
  • Range (mV): ±2000
  • Range (temperature °C): -10 to 110
No. 6
Milwaukee Instruments MW102 PH and Temperature Meter
  • Ideal for anyone working on a low budget but still requiring fast and reliable measurements
  • Includes ph 4.01 and ph 7.01 20 ml sachet of calibration solution
  • Supplied complete with a ma911b/1 ph electrode
  • 9V battery included
No. 7
Apera Instruments Value Series PH850-DP Portable pH Meter Kit for Dairy Products and Liquid Food
  • Equipped with Swiss LabSen 823 pH/temp Electrode designed for dairy products and liquid food e.g. milk, yogurt, sauce, jam, etc.
  • Automatic multi-point calibration with slope data display, an indicator of your pH electrode’s condition
  • Built-in temperature sensor enables automatic temperature compensation
  • IP57 rugged structure design for in-field use and the foldable stand supports use as a benchtop meter.
  • Self-diagnosis ensures the meter will be properly calibrated and guides you on how to fix common problems
No. 8
GroLine Hydroponic Waterproof pH/EC/TDS/Temperature Portable Meter
  • One combined, pre-amplified pH, EC, and TDS (ppm) probe for hassle-free measurements.
No. 10
NANBEI lab ph Meters with ATC,Digital ph kit,±0.01 pH Accuracy, Digital PH Meter with Backlit LCD Display, 1-3Points Auto Calibration,Portable pH Meter for Hydroponics Plants, Aquarium and Pool
  • NOTE: There is a small amount of deionized water in the electrode storage cap to keep the electrode sensitiveness, which is normal.Therefore, when you use it for the first time, it is normal to find water droplets in the electrode cap
  • The auto-calibration function, with 1-3 points calibration capability, further enhances the meter's accuracy and ease of use. This feature eliminates the need for manual calibration adjustments, saving valuable time and effort while ensuring optimal performance in various testing conditions.
  • More Accurate and reliable:±0.01 pH;Measurement Range:(-2.00-16.00)pH,ATC range:(0.0-60.0) ℃/ (32.0-140.0) °F automatically
  • one-key temperature conversion. It can easily obtain accurate pH value in dim and temperature-changing environments. Comes in a rugged carrying case with pH 4&7&10 buffers, calibration bottles, soaking solutions,and a lanyard
  • High quality replaceable glass pH probe, suitable for regular water solutions e.g. pools&spas, hydroponics, environmental monitoring, beverage, test swimming pools,aquariums, saltwater fish tanks, freshwater fish tanks, koi ponds, beer and wine brewing, drinking water, well water, RO water, well water, ponds, aquaculture, Sewage treatment, etc.
No. 11
AC Infinity pH Meter Kit, High Precision Digital pH Pen with ±0.1 pH Accuracy, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools
  • A pH reader for water quality assessment designed to help monitor and maintain proper pH levels.
  • Measures the acidity, alkalinity, and temperature of water for gardens, aquariums, pools, and more.
  • Sensor probe with sensitive glass membrane delivers instant pH readings with high accuracy.
  • IP-67 rated to be sealed from high-volume moisture, dust, and sand; can also withstand high levels of heat.
  • Lab-grade pH monitor testing kit includes ready-to-use 4.00 & 7.00 solutions for long-lasting precision.
No. 12
Bante 220 Portable pH Meter, ±0.01 pH Accuracy, 3 Points Calibration, Automatic Temperature Compensation, Auto-Read Measurement Endpoint, 100 Sets of Data Storage
  • Economical portable pH meter contains pH and mV measurement modes.
  • 1 to 3 points calibration with automatic buffer recognition.
  • Automatic electrode diagnosis shows zero-point offset and electrode slope.
  • Automatic temperature compensation ensures accurate pH measurement.
  • Auto-read function senses and locks the measurement endpoint.
  • Auto-power off effectively conserves battery life.
  • Setup menu contains 7 options, including pH buffer group, number of calibration points, temperature unit, etc.
  • Reset function automatically resumes all settings back to the factory defaults.
  • Expanded memory stores up to 100 data sets.
  • USB communication interface for data transfer or connecting a power adapter to the meter.
No. 13
UIUZMAR Digital pH Meter pH TDS EC Meter for Hydroponic Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic
  • [Great Digital pH Tester] A great tool to monitor pH level regularly, as the pH of nutrient solution being such an important factor in hydroponic systems. For the majority of plants, a pH range of 5.3-6.5 is considered appropriate for hydroponic.
  • [PPM EC Meter for Hydroponics] Check what the TDS and EC level is in a hydroponic system, and helps you balance water to keep proper water condition. It is vital to have the correct EC and PPM level.
  • [4 in 1 pH Meter] With pH TDS EC TEMP functions; General uses include hydroponics, greenhouse reservoir, DWC setup, hot tub, spa, drinking water, home tap water, well water, RO system, aquarium, and home brewing.
  • [Easy to Calibration and Storage] Simple 3-point pH calibration process (pH4.0/ 7.0/10.01), comes with 2 sets of pH calibration powders. EC/TDS is pre-calibrated, right out of the box.
  • [Product Design Features] Automatic temperature compensation (32-122 ℉), provides consistent reading regardless of any fluctuations in temperature. With LCD backlit, the backlight shuts off in 30 seconds, press any key to reopen backlight.
No. 14
Bante 902P Portable pH Conductivity Meter | Multi-Parameter Meter for Measuring pH, Conductivity, TDS, Salinity, Resistivity, ORP and Temperature | Accuracy ±0.002 pH, ±1% F.S.
  • High-precision portable pH conductivity meter is designed for measuring the pH, ORP, conductivity, TDS, salinity and resistivity.
  • 1 to 5 points calibration with automatic recognition for USA, NIST, DIN buffers and conductivity standards.
  • Automatic electrode diagnosis shows the zero-point offset, slope and cell constant.
  • Automatic temperature compensation ensures accurate readings over the entire range.
  • Auto-read function senses and locks the measurement endpoint.
  • Calibration due alarm reminds the user to calibrate the meter regularly.
  • Setup menu contains 15 options including the pH buffer group, number of calibration points, resolution, conductivity cell constant (K=0.1, 1, 10), reference temperature (20/25°C), TDS conversion factor, linear and pure water compensations, seawater and practical salinity measurement modes, stability criteria, auto-power off, etc.
  • Expanded memory stores up to 500 data sets.
  • USB communication interface is easy to transfer data to a PC or connect to a power adapter.
  • Communication software is capable of receiving measurement data, recording measurements at predefined time intervals and creating Excel files.
SaleNo. 15
VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified
  • Application: Great for all home and laboratory TDS & pH testing applications including aquariums, swimming pools
  • PH Meter: Full measurement range of pH 0 - 14, reliable and quick readings
  • 3-in-1 TDS Meter: Measurement Range 0-9990ppm, 0-9990µs/cm; Accuracy ± 2%, 0.1- 80.0°C, 32.0-176.0°F; Note: This meter can't test sea water
  • Features: Comes with protective case; Lightweight, handheld design for portability and convenience
  • Included: PH meter, 3-in-1 TDS meter, 3 calibration buffers
No. 16
Bluelab Combo Meter for pH, Temperature & Conductivity in Water - Easy Calibration, Digital EC/TDS/PPM Tester for Hydroponics & Indoor Plants (METCOM)
  • Monitor 3 parameters in water: Conductivity (TDS) level to ensure plants get a balanced feed, pH up and down, and temperature with lab quality glass probe; Gereral uses include growing tent, swimming pool, drinking water, and aquarium
  • This hydroponics meter has ATC that provides consistent reading regardless of any fluctuations in temperature; pH probe is double junction; Conductivity scales include EC, PPM, and CF
  • Combine with Bluelab meters and controllers for full indoor garden nutrients monitoring in water and soil; pH probe requires easy two point calibration; Conductivity and temperature probes come factory calibrated and are ready to use
  • Other features: Auto off function, low battery indicator, units for temperature; KIT INCLUDES: AAA batteries, pH probe storage cap, and calibration solution, probe care kit is sold separately
  • Made in New Zealand and manufactured by Bluelab, the industry leader in hydroponic testing equipment, built for growers; 5-Year Limited Warranty with proof of purchase (6-month warranty for probes)
No. 17
HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy
  • Measures pH and Temperature, Range: 0-14 pH, 0-80 °C, 32-176 °F
  • Autoranging three point calibration with digital fine tuning
  • Waterproof housing (IP-67 rating)
  • Includes storage solution in a sponge embedded in a clear cap
  • Auto-off function, data-hold function and low-battery indicator
SaleNo. 18
2024 All-New pH Meter for Water - High Accuracy Digital pH Tester (0.01 Precision) with UL Certification and 3 pH Calibration Powders - Ideal for Home Water, Hydroponics, Aquariums, Pools, and More
  • Reliable Brand: At MEXYBE, we believe that knowledge is power, especially the water we consume. We are dedicated to empowering individuals with precise water testing tools because clean, balanced water is a fundamental right. Our pH meter represents our commitment to health, safety, and peace of mind. Whether you're ensuring drinking water purity or maintaining your garden, MEXYBE delivers trusted accuracy. Join us in protecting what matters most—your health, home, and our planet
  • Friendly Reminder: Regularly cleaning the pH meter electrode is crucial for ensuring accurate readings. Contamination of the electrode can lead to unstable measurements. Please use an appropriate cleaning solution, such as distilled or purified water. If you have any questions, feel free to contact our customer service team at any time
  • Easy to Use: Turn on the pH meter and immerse it in water between the upper and lower immersion lines (ensuring the small glass ball is in full contact with the liquid). Gently stir to eliminate any bubbles, and take the reading once it stabilizes. (Important Notice: The product is pre-calibrated before shipping and ready to use straight out of the box. If the product has not been used for more than one day, please soak the electrode in the test solution for 5 minutes before conducting any tests. Failing to do so may result in longer stabilization times for pH readings)
  • Essential for Every Home: Elevate your quality of life with this versatile tool. Perfect for testing pH balance in various environments such as household water, drinking water, reverse osmosis systems, hydroponics, aquariums, swimming pools, hot tubs, and spas. Essentially, any situation where accurate pH testing is needed can benefit from this meter. Enhance your daily living with the confidence that comes from knowing your water is always just right
  • What’s in the Box & Support You Can Count On: Along with your pH meter, you'll receive a detailed user manual, 2 x 1.5V button cells (pre-installed), and 3 x pH buffer powders. Plus, a dedicated team of water quality experts ready to offer rapid and efficient responses round the clock through live chat and email. We are committed to taking our customers' feedback seriously, as our sole aim is to deliver products and services that hold genuine value for you
  • Important Notice: The product is pre-calibrated before shipping and ready to use straight out of the box. If the product has not been used for more than one day, please soak the electrode in the test solution for 5 minutes before conducting any tests. Failing to do so may result in longer stabilization times for pH readings
No. 19
Milwaukee MW100 LED Economy Portable pH Meter with Manual Calibration, 0.0 to 14.0 pH, +/-0.2 pH Accuracy, 0.1 pH Resolution
  • Low cost portable pH meter with no frills
  • Double junction electrode with 1 meter cable; manual calibration
  • Faster processor with the new chipset and motherboard; 100 percent larger and easier to read LED display
  • Smaller, ergonomic and lighter case design
  • Easier and faster to calibrate; longer battery life
No. 20
APERA INSTRUMENTS Premium Series PH8500 Portable Handheld pH Meter Kit (AI5520)
  • Take lab-grade pH/mV measurements in a quick and easy manner
  • IP57 rugged structure design for in-field use and the foldable stand supports use as a benchtop meter
  • Automatic multi-point calibration with slope data display, due calibration reminder, and last calibration date check
  • Auto/manual data logging with GLP data management (500 sets of data storage) and USB data output
  • Self-diagnosis ensures the meter will be properly calibrated and guides you on how to fix common problems

How to choose a good portable ph meters

Does the idea of finding a fantastic portable ph meters make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in portable ph meters. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top portable ph meters products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top portable ph meters on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top portable ph meters brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top portable ph meters based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the portable ph meters were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good portable ph meters, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your portable ph meters.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting portable ph meters for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our portable ph meters. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what portable ph meters should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on portable ph meters.