5 Best pH Meters - Top Picks in 2020 (Reviews & Guide)
Used to measure acidity or alkalinity of substances, pH is an abbreviation for the potential of hydrogen. It measures the hydrogen ions present in content with the hydroxide ions. pH meter has a full application from laboratory tests to gardening activities.
Advantage of Using a pH Meter
Today, you can find many devices for measuring the pH level of something. But when you look around, it’s easy to see why a pH meter is better than the rest.There are many advantages of using a pH meter over a pH testing strip or some other form of measurement.
One of the main reasons is that a pH meter is much more accurate than a strip tester is. Once you calibrate your meter, it gives you a straightforward reading that’s understandable. There’s not really any room for doubt or confusion.
Using a pH meter is also just very objective compared to reading a color pH testing strip. These strips tend to vary by color and brand, so getting a reading depends on how you think the colors look.
A pH meter just gives you a simple number that’s easy to understand and the same across the board.A pH meter also has the advantage of being reusable. You don’t have to throw it away after a single use like most pH measuring tools.
You can measure with a single meter as many times as you like, saving you money and convenience.
Below will introduce you to 4 of the best pH meters you can buy.
HM Digital pH/TDS/EC/Temp meter
The COM-300 is a professional grade level pH/EC/TDS/Temp meter ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment and more.
This device quickly and accurately provides measurement for Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature. Small in size, professionals can easily fit the Com-300 in their pocket for on-the-go usage. Submerse this meter or allow it to float!
Features:
- Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS), Salinity and Temperature
- Five scales: pH, µS, mS, ppm 0.5 (NaCl) Scale & 0.7 (442™) Scale
- Automatic Temperature Compensation (ATC) using three temperature coefficients
- Digital Calibration (push button) to any point within the meter’s range
- Auto-off function, data-hold function and low-battery indicator
- Large and easy-to-read LCD display includes simultaneous temperature reading
- Factory Calibrated (pH/EC/TDS)
Oakton Eco Tester TDS Low
Description
- Range: 0 to 1990ppm (EcoTestr TDS Low) and 0 to 1990µS/cm (EcoTestr EC Low)
- EcoTestr TDS Low has an adjustable TDS factor for accurate measurements
- Up to ±1% full scale accuracy
- IP67 waterproof rating; tester floats on water for easy retrieval
- Manual calibration option for better accuracy with near-to-sample calibrations
- Click-lock battery compartment requires no tools for battery replacements
- Hold function freezes reading temporarily for ease of recording
- Sensor protective cap that doubles up as a container for samples or calibration solution
- Rugged, sturdy stainless steel pin sensors give quick, reliable conductivity measurements
- Eutech EcoTestr TDS Low Series: comes with adjustable TDS factor
- Eutech EcoTestr EC Low Series: comes with rugged, sturdy stainless steel pin sensors, giving quick, reliable conductivity measurements
Ideal for: hydroponics, agriculture, aquaculture and aquariums, environmental monitoring, water and wastewater treatment, cooling towers, electroplating rinse tanks, drinking water, detergent, printing, photo-development
Milwaukee EC65 Waterproof Tester
The C65 is a microprocessor-based conductivity tester with a rugged one-piece IP67 waterproof casing. Immersible up to the LCD. This instrument is a low-cost and easy to use meter with a replaceable electrode. Includes 3 1.5 volt button batteries.
- Measurements range of 0-1999 S/cm
- Resolution of 1 S/cm
- Accuracy of 2% full scale
- Calibration of manual 1 point
- Compensation of 0-50°C
- Testing environment of 32-122°F, 100% RH
- 250 hours battery life
ECO Farm 5 in 1 TDS/EC/Salt/S.G./Temperature Test Meter
Features:
C-100 versatility of portable TDS / EC / SALT / S.G / TEMP water quality tester.
Mainly used for testing TDS (ppm /), EC (uS / cm, mS / cm), SALT (%), S.G (seawater gravity) and TEMP (ºC / ºF)
The pen type is simple and portable. Put the meter into the solution, it can quickly and steadily respond to the reading, and has a calibration function to ensure high accuracy.
The density of seawater in different regions is generally 1.02-1.07, and the weight of the dissolved salts is different about 3.5% on average. It is recommended to control the proportion of salt in this range.
Seawater salinity is the ratio of the total dissolved solids to the weight of seawater in seawater, usually expressed in grams per kilogram of seawater.
Specifications:
Model: C-100 (with Backlight)/ C-100A (optional)
EC:
Range: 0 to 10000uS / cm 10.01-19.99mS 20.1-400mS / CM
Resolution: 1uS / cm; 0.1 ms / cm;
Accuracy: ± 2 ％ F.S
TDS:
Range: 0 to 1000ppm 1000ppm to 10000ppm 10.1 to 200.0ppt (auto out of range)
Resolution: 1ppm; 0.1 point
Accuracy: ± 2 ％ F.S
salinity:
Range: 0.00 to 25.00%
Resolution: 0.01%
Accuracy: 0.01-5.00% (± 0.1%) 5.10-25.00% (± 1%)
SG: specific gravity of seawater 1.000-1.222
calibration:
EC: Three-point calibration is optional (1413uS 12.88mS 111.8mS)
Temperature compensation: ATC
Operating environment:
0 to 80.0ºC (32.0-176F); <90%
TDS coefficient: 0.5
Temperature range: 0.1-80.0ºC 32.0-176ºF
Temperature accuracy: + 0.5ºC
Temperature resolution: 0.1ºC / ºF
Automatic shutdown: 5 minutes
Power: 3x1.5 LR44(Not Included)
Screen size: 28 * 17mm
Size / weight: 159 * 34 * 16mm (6.31 * 1.3 * 0.6in) / 60g (2.1oz)
Display: support backlight
Battery: Low battery indicator
