pH Meters - Page 3 - Mega Sale! Save up to 28%


Mega Sale! Up to 28% off on pH Meters at Dupen Labs, Page 3. Top brands include Nicelux, Extech, Aukru, Milwaukee, VantaKool, Unido Box, HM Digital, Ohaus, Rozway, 7Pros, ShamBo, Bml, QIYAT, Apera Instruments, LLC, TopOne, LuckyStone, Bluelab, Wellcows, & Hongville. Hurry! Limited time offers. Offers valid only while supplies last.



TDS Meter with EC & Temperature Function,3-in-1 Digital Water Test Kit,an Accurate and Reliable Water Quality Tester for Aquariums,Swimming Pool,RO System,hydroponics,Aquaculture,Brew and More
By Nicelux
In Stock
$13.59

mpn: W11, ean: 0663751485351,

4.9 out of 5 stars with 60 reviews
A 3-in-1 digital water quality test kit(TDS,EC & temperature).It is designed to quickly look into water's value of Total Dissolved Solids(unit: ppm),Conductivity,and Temperature. Titanium alloy electrode with ATC (Automatic Temperature Compensation) technology, the pen can provide highly accurate testing data with as low as 2% tolerance. Equipped with backlit display,the output data can be well read in dark area Application Field Household Drinking Water Aquariums Swimming Pool RO / DI System


Extech PH110 Waterproof ExStik pH Meter
By Extech
In Stock
$109.99
$79.67
You Save: 28%

mpn: PH110, ean: 0793950051108,

4.2 out of 5 stars with 128 reviews
Extech PH110 ExStik Refillable pH Meter, Analog Bargraph Displayed on LCD, Memory Records and Recalls 15 Sequentially Tagged Readings, Eliminates the Concern of Electrode Shelf Life Now you can test pH on the spot easily and accurately with the ExStik® PH110 Waterproof pH Meter. The durable ExStik meter features a flat surface refillable electrode for measuring pH in liquids, semi-solids, and solids - no more electrode breakage or clogged junctions. Since you can refill the ExStik quickly, you


Aukru ATC Digital PH Meter 0.01 PH Tester High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Garden Household Drinking Water Quality Aquariums Pool pH Test Hydroponic Supplies Kit
By Aukru
In Stock
$21.99

mpn: US-PH Meter Pen-Button6P,

4.3 out of 5 stars with 118 reviews
Wide Application of Aukru pH Meter Aukru PH Meter is digital and useful for water quality test of household or laboratory; It's not only suitable for testing pH balance of drinking water, pool, aquarium, RO system, Spa, or hydroponics, but appropriate for wine and beer making and more. How To Use ? - Digital pH Meter Guide ① Remove the protective cap. ② Turn on the Digital pH meter by pressing the ''ON/OFF'' button. ③ Immerse the electrode testing port inside the tested solution.


Milwaukee Instruments (716798) PH55 Waterproof Ph Dual Level LCD Tester
By Milwaukee
In Stock
$62.46
$61.50
You Save: 2%

mpn: MIPH55, ean: 0810666001552,

4.6 out of 5 stars with 82 reviews
IP67 Waterproof pH tester with Large dual level LCD that displays pH and temperature (C or F). The large display shows reading in an extended range from -2.0 to 16.0 pH and simultaneously show temperature from -5.0 to 105.0 (Celsius) or 23.0 to 221.0 (Fahrenheit). Has a stability indicator and hold function that freezes the displpay for easy and accurate recording. THe large display also has graphic symbols to guide you through all operations. Comlete with a temperature probe for faster and


VANTAKOOL Digital PH Meter, 0.01 PH High Accuracy Pocket Size PH Meter/PH Tester with 0-14.0 Measuring Range, Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums (Orange)
By VantaKool
In Stock
$13.99

mpn: PH meter, ean: 0606682221063,

4.3 out of 5 stars with 35 reviews
VANTAKOOL Digital PH Meter, 0.01 PH High Accuracy Pocket Size PH Meter / PH Tester with 0-14.0 Measuring Range, Water Quality Tester for Household Drinking Water, Swimming Pools, Aquariums Specifications: ► Measuring range: 0.00-14.00 pH ► Resolution: 0.01 pH ► Accuracy: 0.01 pH ► Batteries: 2X 1.5V LR44 (included) ► Automatic temperature compensation: 0-50℃(32-122℉) ► Dimensions: 15x2.5x1.3cm/6x1.1x0.5 inch ► Net Weight: 52g/1.83 oz Features: ▲ High Quality and Durable


Set of 2 Global 0.05 PH High Accuracy Compact Size Meter Tester With ATC (Automatic Temperature Compensation) LCD Screen and TDS Digital Meter (pH+TDS)
By Unido Box
In Stock
$17.95

mpn: 51, ean: 0689214226408,

4.4 out of 5 stars with 127 reviews
pH Meter Tester: - No calibration needed for new purchased item, just immerse the electrode and wait for about 30~60 seconds to get the accuracy readings. - Use the 6.86 pH buffer powder for calibration after a long time /frequently using or when ultra accuracy is needed. Specifications: - Measuring range: 0.0 ~ 14.0 PH - Resolution: ± 0.01 PH - Accuracy: ± 0.05 pH (20°C/ 68°F) - Batteries: 2 x 1.5V batteries (included) - Automatic temperature compensation: 0~50°C /122°F - Dimensions:


HM DIGITAL PH Meter PH-80 Handheld Water Resistant Water Quality Tester Pen With ATC For Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water
By HM Digital
In Stock
$42.99
$33.76
You Save: 21%

mpn: HMPH-80, ean: 0603964472762,

4.0 out of 5 stars with 116 reviews
Applications For Hydroponics and Gardening, Pools and Spas, Aquariums and Reef Tanks, Water Ionizers, Drinking Water And More.FEATURESMeasures PH and TemperatureOne-Touch Automatic Digital CalibrationWater ResistantSimultaneous Perature DisplaySleek Lightweight DesignLarge LCD DisplayAutomatic Temperature Compensation(ATC)Auto-Off Function,Data-Hold Function and Low-Battery IndicatorFactory Calibration To PH 7.0. The Meter Can Be Recalibrated With Digital Calibration To PH 4.0, 7.0 or 10.0


Ohaus ST20 pH Pen Meter, Waterproof, 0.01 pH
By Ohaus
In Stock
$76.80

mpn: ST20,

4.7 out of 5 stars with 99 reviews
Ohaus pen meters provide accurate measurement of pH, oxidation-reduction potential (ORP), conductivity, salinity and total dissolved solids (TDS). Starter pen meters are the economical option when you are simply looking for meters that will provide accurate measurement with no restriction. Each meter offers simple operation in a slim & portable design providing fast, straight-forward results time and time again. Durably constructed to withstand wear and tear, Ohaus pen meters provide a sturdy


Digital Pocket Size PH Meter/PH Tester/Water Quality Tester for Drinking Water, Hydroponics, Aquariums, Pools, Beer, Wine, Food, 0.01 PH Measurement - Extra PH Test Calibration Solution Pack
By Rozway
In Stock
$19.95

mpn: RW-DPHM-2017,

4.2 out of 5 stars with 26 reviews
Introducing The Rozway Digital Water pH Meter . Fast And Precise pH Measurement Whether you are dealing with Agriculture, Gardening or want to test the water supply, soil, your swimming pool/aquarium/other household use, test any solution or if you are into brewing at home making your own beer/wine; Then this digital pH Test Kit will be an invaluable tool for you. The Ultimate Cost-Efficient Way To Measure pH Get our new pH Water meter and save a small fortune on disposable pH test strips. Now,




Digital PH Meter, Pocket Size Water Quality Test Meter with 0.00-14.00 Measurement Range and Large LCD Display for Household Drinking Water, Aquarium, Swimming Pools, Hydroponics(Upgraded) (Orange)
By ShamBo
In Stock
$13.99

mpn: 43237-48515, ean: 0606682221179,

4.2 out of 5 stars with 34 reviews
Specifications: Measure range: 0.00-14.00 pH Resolution: 0.01 pH Accuracy: 0.01 pH Power supply: 2*1.5V (LR44 Button cell) Operating temperature: 0-50℃ Calibration: two points automatic calibration Dimensions: 150mm*25mm*13mm Net Weight: 52g/1.83 oz Note: The accuracy of PH is 0.01, the glass electrode is more sensitive to changes in the surrounding environment. So reading jump is normal in the air or water. You could please place the pH meter into the water, standing for 2 minus, the pH


Digital PH Tester Meter Pocket Pen Aquarium Pool Water Digital Tester//Probador metro ph digitales
By Bml
In Stock
$10.05

mpn: CWFPH01SM, ean: 6153282256208,

4.8 out of 5 stars with 22 reviews
Este medidor ph estilo lápiz digital es un instrumento ideal para el acuario, industria pesquera, la piscina, el laboratorio de la escuela, alimentación y bebidas, etc. 100% nuevo medidor marca con la caja protectora de plástico y un destornillador de calibración. muy excelente, precisa y duradera. Note:The new digital tester shouldn't need to be adjusted. When you turn on the tester , you may find the measured value is not accurate and unstable, it's normal phenomenon. Put the digital


Digital Water Quality TDS Tester - QIYAT 3 in 1 PH Temp TDS Water Meter High Accuracy Quality Tester PPM Pen Resolution Range +/- 0.1 PH Value for Drinking Water, Aquariums, etc. (986)
By QIYAT
In Stock
$31.40

mpn: 43237-2, ean: 8419391799547,

4.3 out of 5 stars with 127 reviews
The professional pH / TDS / TEMP meter is affordable and useful for those who need a PH tester for household and laboratory use.Apply in all water quality testing, aquarium, swimming pools, waste water regulation,hydroponics, laboratory and scientific testing, homebrewing, winemaking ,pools & spas, ecology testing, water treatment ,school & collegesand more. Use Easily Just remove the protective cap and immerse the instrument electrode into the test solution and turn on the PH by ''ON / OFF''


Apera Instruments AI1203 PH60F-E Replacement Probe for PH60F Pocket pH Tester
By Apera Instruments, LLC
In Stock
$47.08

mpn: AI1203, ean: 0858718006353,

4.1 out of 5 stars with 108 reviews
The Apera Instruments PH60F-E Probe is the replacement probe for Apera PH60 Series Premium pocket pH testers, including PH60F, PH60 and PH60S. It is also compatible with PC60. This probe features a flat glass membrane sensor with a built-in thermister, triple-junction structure, and maintenance-free gel KCl electrolyte, made for surface pH testing such as skin, fabrics, paper, leather, carpet, and micro-volume solution samples. It also works well for regular water solution testing.Measurement


TopOne Digital TDS Meter + PH Meter with Auto Calibration Button, Water Quality Test Kit 4 in 1
By TopOne
In Stock
$21.99
$16.99
You Save: 23%

mpn: tds+ph 01, ean: 6953057159488,

4.4 out of 5 stars with 106 reviews
PH Meter: Measuring Range: 0 to 14.0 pH Resolution: 0.01 pH Accuracy: +/-0.01 pH Use Environment: 0 to 60℃(32 to 140℉ ) Battery: 3 * 1.5V LR button cell Product Size: 6.10 in * 1.19 in * 0.59 in Color: Yellow Note: 1.Please calibrate the PH meter before each use and clean it after using. 2.A correct reading could be selected when the change of value  is less than 0.01ph in about 10 s. TDS  Meter : Measuring Range:0 to 9999 ppm (parts per million) Conductivity: 0 to 9990 µs/cm Degrees


Digital PH Meter PH-009 Pocket Size Water Quality pH Tester for Household Drinking Water, Hydroponics, Aquariums, Swimming Pools - Extra Two Packs of PH Calibration Solution Mixture
By LuckyStone
In Stock
$12.99

mpn: SG6623169278, ean: 0620809000799,

4.2 out of 5 stars with 15 reviews
This digital pen style pH meter is an ideal instrument for any aquarium, the fishing industry, swimming pools, school laboratories, food & beverage etc. All inspection qualified before shipment. Factory calibrated, it can be used immediately. Please be sure to calibrate with buffer solution before use(Long time no use). Calibration: -- Immerse the tester up to the maximum immersion level in the PH 4 or 6.86 buffer solution. (Package Includes 2 pack of PH substance which makes 250 ml buffer


Bluelab PENPH pH Pen, Ultimate Handy Solution for Measuring pH and Temperature
By Bluelab
In Stock
$88.29
$77.72
You Save: 12%

mpn: PENPH, ean: 9421024920210,

4.2 out of 5 stars with 147 reviews
Plants get their nutrient from minerals but they can only get all the right minerals they need if certain conditions are right. Think of nutrients like a lock. pH is the key. A key factor that affects food uptake is whether your solution is acid or alkaline. We measure this in ph. The Blue lab pH Pen also measures the temperature of the solution, as root health is vital to the success of a crop. Temperature affects the growth rate and structure of a plant so a solution temperature of 65 -


Digital PH Meter, 0.01 PH High Accuracy Tester with 3x pH Buffer Powders for Household Drinking Water, Aquarium, Pool & Hydroponics 0-14 pH Measuring Range PH Meter (Blue)
By Wellcows
In Stock
$11.99

mpn: PH meter, ean: 0606682222237,

4.1 out of 5 stars with 47 reviews
How to Use: STEP 1: Turn open pH meter, Clean the electrode in distill water. STEP 2: Immerse the electrode in pH 6.86 standard buffer solution. STEP 3: Press the ''''CAL'''' button. Wait until the display digital is 6.86pH and steady. STEP 4: Clean the electrode in distill water and dry it, immerse the electrode in Ph 4.00 standard buffer solution. STEP 5: Press the ''''CAL'''' button. Wait until the display digital is 4.00pH. Then complete pH 4.00 calibration. STEP 6: Clean electrode and dry


Hongville HV-PH-METER Pocket Size PH Meter/PH Tester/Mini Water Quality Tester
By Hongville
In Stock
$10.99

mpn: HV-PH-METER, ean: 0719034330532,

4.2 out of 5 stars with 77 reviews
Hongville Pocket Size PH Meter / PH Tester / Mini Water Quality Tester PH 0-14.0 Measuring Range, 0.1PH Resolution Features: 1. Great for all home and laboratory pH testing applications including aquariums, swimming pools 2. Measurement range of 0-14 pH - highly accurate, reliable and quick readings 3. Comes with carrying case; Lightweight, handheld design for portability and convenience Large Backlit Specifications: 1. Measuring Range: 0-14.0 pH 2. Resolution: 0.1 pH 3. Accuracy: ±0.1


Digital PH Meter, VANTAKOOL PH Meter 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium Water PH Tester Design with ATC (blue-upgrade)
By VantaKool
In Stock
$13.99

mpn: 4336465336, ean: 0606682221926,

4.9 out of 5 stars with 38 reviews
Specifications: Model: 2017 updated Version Measuring Range: 0-14.0 pH Resolution: 0.1 pH Accuracy: 0.1 pH(20°C ) Use Environment: RH 95%, 0-50℃(32~176℉ ) Battery: 2×1.5V LR button cell Weight: 1.76 OZ Features: ✅High Quality and Durable It's highly accurate for measuring range of 0-14 PH, 0.1 PH resolution, measure & display pH result simultaneously with LCD display, reliable and quick reading. ✅ Easy to Use You just remove the protective cap and immerse the PH meter electrode



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