We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy
Home
All Categories
Industrial & Scientific
Test, Measure & Inspect
Ph Meters

10 Best Ph Meters 2025 in the United States

#1

Winner

10.0 score

APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

Apera Instruments

10.0 score

Check price

The Apera AI209-T pH Tester Combo Kit is a well-rounded option for anyone needing accurate and reliable pH measurements, whether for home, lab, or light industrial use. Its strength lies in the Apera quality pH sensor, which offers quick response times and stable readings thanks to low impedance technology. The device also includes automatic temperature compensation, so it maintains accuracy in a variety of working conditions between 32 and 122°F. Calibration is straightforward with the auto buffer recognition feature, and the included CalBox helps organize calibration solutions efficiently, saving money by reducing buffer waste.

Rating
10.0
Chosen by1,321
Accuracy
Calibration
Temperature Compensation

Most important from
9433 reviews

Accuracy
The device delivers quick and accurate pH readings, making it ideal for professional settings like commercial kitchens where safety and shelf stability are critical.
Calibration
Calibration is straightforward and reliable with ready-to-use buffer solutions, eliminating the hassle and inconsistency of mixing powders.
Temperature Compensation
Overall, it offers a dependable, user-friendly experience with stable readings aided by automatic temperature compensation.
Portability
Powered by four AAA batteries, the compact and lightweight design makes it highly portable without sacrificing performance.
Durability
The sturdy carrying case and waterproof design contribute to its durability, even with occasional drops during daily use.
#2
9.7 score

Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313)

Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313)

Apera Instruments

9.7 score

Check price

The Apera Instruments Premium-Series PH60S is a reliable pH meter designed especially for measuring pH in food items like cheese, sushi rice, meat, and dairy, as well as in general water solutions. It offers excellent accuracy with a precision of ±0.01 pH, which is great for users who need detailed and trustworthy readings. Its wide pH range from -2.00 to 16.00 means it can handle very acidic to very alkaline samples, covering nearly all common testing needs. The meter includes automatic calibration and temperature compensation, making it easier to get accurate results without fiddling with manual adjustments. A handy feature is its high/low value alarm that uses a red backlight to alert you instantly when readings fall outside your desired range, which helps prevent mistakes. The display is large and clear, with backlighting and dual readouts for both temperature and pH, aiding visibility in various lighting conditions.

Rating
9.7
Accuracy
Calibration

Most important from
3411 reviews

Accuracy
Delivers consistent and reliable readings with fast stabilization, making it a dependable tool for precise pH measurement.
Calibration
The three-point calibration feature simplifies the setup process, allowing for quick and accurate adjustments.
#3
8.5 score

Oakton AO-35614-30 pH 150 Waterproof Portable Meter with SJ All-in-One Electrode

Oakton AO-35614-30 pH 150 Waterproof Portable Meter with SJ All-in-One Electrode

Oakton

8.5 score

Check price

The Oakton AO-35614-30 pH meter is a solid choice for those needing a portable and waterproof option for measuring pH levels. One of its standout features is its wide pH range of -2.00 to 16.00, which allows it to be used in various applications, making it suitable for both laboratory and field use. Additionally, its ability to measure temperature from -10 to 110 degrees Celsius enhances its versatility, especially in environments where conditions can vary significantly.

Top 10 Best Ph Meters 2025 in the United States

Sponsored

Slide 1

YAMRON

4-in-1 Soil Moisture Meter Digital Plant Temperature/Soil Moisture/PH Meter/Sunlight Intensity Backlight LCD Display Soil Test Meter for Gardening, Farming and Outdoor Plants

Check price

#1

Winner

10.0  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Apera Instruments

APERA INSTRUMENTS AI209-T Value Series PH20 pH Tester Combo Kit, including the Maintenance Set, and a CalPod Solution Holder for Easy Calibration

Range: 32 to 122°F
Calibration: auto buffer recognition
Temperature Compensation: automatic
Portability: compact, lightweight, powered by 4 AAA
Durability: durable for everyday use

Check price

Chosen by 1321 this week

Sponsored

Slide 1

YAMRON

4-in-1 Soil Moisture Meter Digital Plant Temperature/Soil Moisture/PH Meter/Sunlight Intensity Backlight LCD Display Soil Test Meter for Gardening, Farming and Outdoor Plants

Check price

#2
9.7  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Apera Instruments

Apera Instruments Premium-Series PH60S Food pH Pocket Tester Kit, Swiss Spear pH Electrode, ±0.01 pH Accuracy, -2.00-16.00 pH Range (AI313)

Accuracy: ±0.01 pH
Range: -2.00 to 16.00 pH
Calibration: automatic
Temperature Compensation: automatic
Portability: carrying case with solutions, batteries, lanyard
Durability: Swiss spear sensor, replaceable, for solid foods

Check price

#3
8.5  score
Slide 1Slide 2

Oakton

Oakton AO-35614-30 pH 150 Waterproof Portable Meter with SJ All-in-One Electrode

Accuracy: reliable readings
Range: -2.00 to 16.00 pH
Calibration: cumbersome
Temperature Compensation: included
Portability: 8 ounces
Durability: waterproof

Check price

#4
8.2  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Bluelab

Bluelab OnePen - a 3-in-1 Temperature, EC/PPM and pH Meter, Lightning Fast Readings - Bluetooth Data Sharing & in-App Tracking - Replaceable Probe

Accuracy: ±0.01
Portability: lightweight, easy to handle
Durability: IP68 waterproof rating

Check price

#5
8.2  score
Slide 1

Oakton

Oakton AO-35613-22 pH 6+ Handheld Meter with pH Probe

Range: 0.00 to 14.00 pH
Temperature Compensation: Automatic
Portability: 8 oz, 9.29 x 6.46 x 3.39 in
Durability: Protective rubber boot, durable material

Check price

#6
7.6  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Oakton

Oakton AO-35419-03 pH 700 Benchtop Meter with"All-in-One" pH Electrode

Range: -2.00 to 16.00 pH, ±2000 mV
Temperature Compensation: Yes
Portability: No

Check price

#7
7.6  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Bluelab

Bluelab Combo Meter for pH, Temperature & Conductivity in Water - Easy Calibration, Digital EC/TDS/PPM Tester for Hydroponics & Indoor Plants (METCOM)

Calibration: easy calibration, two-point for pH
Temperature Compensation: auto temperature compensation (ATC)
Portability: lightweight and portable
Durability: robustly built

Check price

#8
7.6  score
Slide 1

Bluelab

Bluelab METMULTI Multimedia PH Meter – Digital Handheld Hydroponic Nutrient and Soil PH Meter for Measuring PH Levels in Nutrient Solutions and Soil

Accuracy: high accuracy
Range: pH range for most applications
Calibration: reminders every 30 days
Temperature Compensation: automatic temperature compensation
Portability: compact and lightweight design
Durability: 5-year warranty, 6-month probe

Check price

10% OFF
#9
7.6  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Bluelab

Bluelab Guardian Monitor Wi-Fi for Real-time pH, Temperature, and Conductivity (TDS) Measurements in Water with Calibration, 3 in 1 Digital Nutrient Meter for Hydroponic Systems and Indoor Plant Grow

Range: 0.0-14.0
Calibration: 2-point
Temperature Compensation: built-in
Durability: sturdy build

Check price

#10
7.0  score
Slide 1Slide 2Slide 3Slide 4Slide 5

Apera Instruments

Apera Instruments AI521 PH800 Laboratory Benchtop pH Meter Kit, 0.01 pH Accuracy, GLP Data Management (USB output), BNC connector

Accuracy: 0.01 pH
Calibration: 1 to 3 points
Portability: Not portable

Check price

8% OFF
How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Buying Guide for the Best Ph Meters

Choosing the right pH meter is crucial for ensuring accurate and reliable measurements, whether you're using it for scientific research, gardening, aquariums, or any other application. A pH meter measures the acidity or alkalinity of a solution, and selecting the right one involves understanding your specific needs and the key specifications that differentiate various models. Here are the key specs to consider when choosing a pH meter and how to navigate them to find the best fit for you.
AccuracyAccuracy refers to how close the pH meter's readings are to the true pH value of the solution. This spec is important because it determines the reliability of your measurements. Accuracy is usually expressed in ± pH units, such as ±0.01 or ±0.1. For highly precise applications like laboratory research, you should look for a pH meter with an accuracy of ±0.01. For less critical applications, such as gardening or aquariums, an accuracy of ±0.1 may be sufficient. Your need for precision will guide you in choosing the right level of accuracy.
RangeThe range of a pH meter indicates the span of pH values it can measure, typically from 0 to 14, which covers the full spectrum of acidity and alkalinity. This spec is important because it determines whether the pH meter can measure the pH levels you are interested in. Most pH meters cover the full range, but some specialized meters may have a narrower range. Ensure the pH meter you choose can measure the pH levels relevant to your application, whether it's for highly acidic solutions, neutral solutions, or highly alkaline solutions.
ResolutionResolution refers to the smallest change in pH that the meter can detect and display. This spec is important for applications where small changes in pH need to be monitored. Resolution is typically expressed in pH units, such as 0.01 or 0.1. For applications requiring detailed monitoring, such as scientific experiments, a higher resolution (0.01) is preferable. For general use, such as checking the pH of soil or water, a lower resolution (0.1) may be adequate. Consider how fine-tuned your measurements need to be when selecting the resolution.
CalibrationCalibration is the process of setting the pH meter to known pH values to ensure accurate readings. This spec is important because regular calibration maintains the accuracy of the meter. pH meters can have manual or automatic calibration. Manual calibration requires you to adjust the meter using calibration solutions, while automatic calibration simplifies the process by adjusting itself. If you prefer ease of use and convenience, an automatic calibration feature is beneficial. However, if you are comfortable with manual adjustments and want more control, a manual calibration meter may be suitable.
Temperature CompensationTemperature compensation adjusts the pH reading based on the temperature of the solution, as pH can vary with temperature. This spec is important for ensuring accurate readings in varying temperature conditions. Some pH meters have automatic temperature compensation (ATC), which adjusts the reading automatically, while others require manual input of the temperature. If you are working in environments with fluctuating temperatures or need precise measurements, a pH meter with ATC is recommended. For stable temperature conditions, manual temperature compensation may suffice.
PortabilityPortability refers to the ease with which you can transport and use the pH meter in different locations. This spec is important if you need to take measurements in the field or move the meter frequently. Portable pH meters are typically compact, lightweight, and battery-operated, making them ideal for on-the-go use. Benchtop pH meters, on the other hand, are larger and designed for stationary use in laboratories. Consider where and how you will be using the pH meter to determine whether a portable or benchtop model is more suitable for your needs.
DurabilityDurability refers to the pH meter's ability to withstand harsh conditions, such as exposure to water, chemicals, or physical impact. This spec is important for ensuring the longevity and reliability of the meter in demanding environments. Some pH meters are designed to be waterproof, dustproof, or shock-resistant. If you are using the pH meter in rugged or outdoor conditions, look for a model with enhanced durability features. For controlled environments like laboratories, standard durability may be sufficient.

FAQ