Dupen Labs

pH Meters - Blowout Sale! Save up to 63%


Blowout Sale! Up to 63% off on pH Meters at Dupen Labs. Top brands include UZZO, Hrph, Dr.meter, Just Utile, LuckyStone, GAONLY, HM Digital, Test Assured, Anaheim Scientific, AMTAST, ORYCOOL, DIGITAL PH METER, Gain Express, Apera Instruments, LLC, SmartElite, Tier1, TekcoPlus, Jellas, Suramayoo, & Pancellent. Hurry! Limited time offers. Offers valid only while supplies last.



UZZO 0.01 Resolution High Accuracy Pocket Size Handheld pH Meter Pen Tester 0-14 pH Measurement Range with LCD Backlight Display (Model:PH-107) Yellow
UZZO 0.01 Resolution High Accuracy Pocket Size Handheld pH Meter Pen Tester 0-14 pH Measurement Range with LCD Backlight Display (Model:PH-107) Yellow
By UZZO
In Stock
$15.99
$14.99
You Save: 6%

mpn: 14138114, ean: 0602596082066,

4.4 out of 5 stars with 7 reviews
Specifications -Model: PH-107 - Accuracy: ¡À0.1 pH (20¡ãC), ¡À0.2 pH - material: hard plastic. - 100% brand new and high quality PH meter PH value tester - Power supply: 3 x AG 13 Button Cell Batteries (included). - Calibration is perfor...


Hrph Digital PH Meter + TDS Tester Monitor for Aquarium/ Fishing/Industry/Swimming Pools/Laboratory/Food & Beverage 0-9999 PP
Hrph Digital PH Meter + TDS Tester Monitor for Aquarium/ Fishing/Industry/Swimming Pools/Laboratory/Food & Beverage 0-9999 PP
By Hrph
In Stock
$16.77

mpn: 2qb1af7qa8pd9, ean: 1904815115005,

4.5 out of 5 stars with 10 reviews
Feature: Measuring pH Range: 0.0 - 14.0 PH. Resolution: 0.1 PH Accuracy: ±in 0.1 pH Typical EMC DEV: ± 0.2 PH Batteries: 3 x 1.5V (AG-13 Button Battery) Trimming: By Potentiometer Meter comes with calibration screwdriver Measures total dissolved so...


Dr.meter 0.01 Resolution High Accuracy Pocket Size pH Meter with ATC, 0-14pH Measurement Range
Dr.meter 0.01 Resolution High Accuracy Pocket Size pH Meter with ATC, 0-14pH Measurement Range
By Dr.meter
In Stock
$36.99

mpn: PH100, ean: 6971420018255,

4.6 out of 5 stars with 115 reviews
Dr.meter - Ultimate Measure for Accuracy The Dr.Meter pH-100 is a handheld, accurate pH meter that measures pH value of water or solution. It has been widely used in the realm of hydroponics, education, water treatment, and swimming pools. This meter...


Digital pH Meter - Water Quality Tester, 0.01 High Accuracy and ATC, x6 calibration packs - pre calibrated pH meter for Water, Pool, Soil, Hydroponics, Aquarium, Beer Brewing, Wine, Food, Urine, lab
Digital pH Meter - Water Quality Tester, 0.01 High Accuracy and ATC, x6 calibration packs - pre calibrated pH meter for Water, Pool, Soil, Hydroponics, Aquarium, Beer Brewing, Wine, Food, Urine, lab
By Just Utile
In Stock
$24.95

mpn: FBA_ph-02, ean: 0643131917979,

4.1 out of 5 stars with 117 reviews
Acidic or alkaline water hurts your health and your plumbing. It can hurt your aquarium or pond fish health, it affects the safety of your swimming pool water and the functionality of the pump, it can lead to deficiency and death of your plants or ru...


PHTester PH-009 Digital pH Meter Tester, With 2 Pack of Calibration Solution Mixture Included
PHTester PH-009 Digital pH Meter Tester, With 2 Pack of Calibration Solution Mixture Included
By LuckyStone
In Stock
$10.99

mpn: SG6623169281, ean: 0520809670575,

4.6 out of 5 stars with 97 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.Calibration need not required, it can be used immediatel...


Digital PH Meter,PH Tester -Water, Pool,Fish Tank, Hydroponics, Education.3 x pH Buffer Powders, Automatic Calibration,Range 0.00-14.00 pH,ATC,Auto-shut off.Greeting card .Green.
Digital PH Meter,PH Tester -Water, Pool,Fish Tank, Hydroponics, Education.3 x pH Buffer Powders, Automatic Calibration,Range 0.00-14.00 pH,ATC,Auto-shut off.Greeting card .Green.
By GAONLY
In Stock
$27.34
$10.00
You Save: 63%

mpn: ph-2, ean: 0612953436098,

4.1 out of 5 stars with 95 reviews
The GAONLY pH meter is the instrument that measures pH in a solution, indicating its acidity or alkalinity The formal definition of pH is : pH = -log[H+] ,but you don't need to waste your time to calculate it anymore. * With GAONLY pH tester you ge...


HM DIGITAL PH Meter PH-200 Waterproof Handheld Portable Water Quality Tester Pen With ATC for Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water
HM DIGITAL PH Meter PH-200 Waterproof Handheld Portable Water Quality Tester Pen With ATC for Hydroponics Gardening Aquariums Reefs Pools Spas Water Treatment Drinking Water
By HM Digital
In Stock
$99.99
$64.85
You Save: 35%

mpn: PH-200, ean: 0603964472779,

4.0 out of 5 stars with 29 reviews
Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agricultu...


Complete Water Test Kit With TDS Meter - Home Testing With Results In Minutes
Complete Water Test Kit With TDS Meter - Home Testing With Results In Minutes
By Test Assured
In Stock
$44.95

mpn: TDSKIT001, ean: 0806800159272,

4.0 out of 5 stars with 42 reviews
Our Complete Water Analysis Test Kit +TDS Meter includes ALL 10 of our at home water tests and meter in one affordable package. This one kit will test for all of the following contaminants and elements: -10 Minute Lead Test -Pesticide Test -Bacteria...


Anaheim Scientific P771 High Accuracy Pocket Sized pH Meter with ATC, Measures 0.00-14.00 pH, 0.01 pH Resolution
Anaheim Scientific P771 High Accuracy Pocket Sized pH Meter with ATC, Measures 0.00-14.00 pH, 0.01 pH Resolution
By Anaheim Scientific
In Stock
$69.00

mpn: P771, ean: 0817050797718,

4.3 out of 5 stars with 45 reviews
The P771 pH meter is a highly accurate, pocket-sized pH meter perfect for use in field environments and applications. With this meter you can easily and accurately measure the pH balance of liquids. Contained in a rugged, waterproof housing, with rep...


AMTAST Portable Pen Type pH Meter for Skin Fruits Surface Flat Pen pH Tester with Temperature Display, No Need Calibration, Range 0.00~14.00, Temperature: 0~60°C
AMTAST Portable Pen Type pH Meter for Skin Fruits Surface Flat Pen pH Tester with Temperature Display, No Need Calibration, Range 0.00~14.00, Temperature: 0~60°C
By AMTAST
In Stock
$52.99

mpn: AMT28F, ean: 0792855828891,

4.3 out of 5 stars with 28 reviews
Specifications:Range: 0.00~14.00Resolution: 0.01Temperature: 0~60°CPower: 1.5V LR44 x 3Item Dimension: 173 x 20 x 18mmItem Weight: 45gSurface Flat Pen pH meter for skin, fruits. No Need Calibration. Can display both pH and temperature. Wide measurem...


PH Meter ORYCOOL 0.01 Resolution Digital PH Tester Pen 0.00-14.00 PH Range with Automatic Calibration Function for Drinking Water Swimming Pools Spas Aquarium Hydroponics
PH Meter ORYCOOL 0.01 Resolution Digital PH Tester Pen 0.00-14.00 PH Range with Automatic Calibration Function for Drinking Water Swimming Pools Spas Aquarium Hydroponics
By ORYCOOL
In Stock
$13.99

mpn: OPHM01,

4.7 out of 5 stars with 141 reviews
Introduction: This PH Meter is the perfect device for determining the acidity or alkalinity of liquids.It's incredibly easy to use-just immerse the electrode and the readings are automatically displayed.With 0.01pH Resolution, you may get higher acc...


Digital PH Meter, 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, Water Quality Tester for Drinking Water, Aquariums, Swimming Pools Water PH Tester Design with ATC
Digital PH Meter, 0.01 PH High Accuracy Water Quality Tester with 0-14 PH Measurement Range, Water Quality Tester for Drinking Water, Aquariums, Swimming Pools Water PH Tester Design with ATC
By DIGITAL PH METER
In Stock
$19.99
$10.99
You Save: 45%

ean: 0752097660970,

4.5 out of 5 stars with 32 reviews
Color:2018-UPGRADE Yellow Digital PH Meter Water Tester The PH meter is a professional and handy tool to quickly and accurately get an indication for the ph level of the solution.It's not only ideal for household or laboratory use. Also suitable fo...


0.00~14.00 pH & Temp ATC Meter Pen w/Replaceable Electrode Probe, ±0.05pH Accurate Water Quality Tester Thermometer, for Lab Experiments Research, Aquariums, Hydroponics, Food, Pool
0.00~14.00 pH & Temp ATC Meter Pen w/Replaceable Electrode Probe, ±0.05pH Accurate Water Quality Tester Thermometer, for Lab Experiments Research, Aquariums, Hydroponics, Food, Pool
By Gain Express
In Stock
$43.90

mpn: 868-9, ean: 0600316558273,

4.2 out of 5 stars with 85 reviews
Waterproof Digital pH Meter designed to measure pH levels from 0~14 and features multi-point calibration with automatic buffer recognition and IP65 waterproof housing. Featuraes Waterproof housing meets IP65 rating Selectable °C & °F units One...


SX610 Waterproof pH Pen Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Suitable for Test Tube Testing, Replaceable Probe
SX610 Waterproof pH Pen Tester, ±0.1 pH Accuracy, 0-14.0 pH Range, Suitable for Test Tube Testing, Replaceable Probe
By Apera Instruments, LLC
In Stock
$57.65

mpn: AI221, ean: 0858718006254,

4.0 out of 5 stars with 77 reviews
The Apera Instruments SX610 pH Pen Tester is featured with reliable measuring performance with a single-button operation in a slim body. A cost-effective choice for your regular pH testing, including hydroponics, aquaculture, water treatment, pools& ...


Digital PH Meter, Professional Mini Pen-type PH Meter with Automatic Calibration, 0.01 PH High Accuracy Water Tester for Household Drinking Water/Aquarium/laboratory/Swimming Pool & Hydroponics
Digital PH Meter, Professional Mini Pen-type PH Meter with Automatic Calibration, 0.01 PH High Accuracy Water Tester for Household Drinking Water/Aquarium/laboratory/Swimming Pool & Hydroponics
By SmartElite
In Stock
$31.99

mpn: goldfhhe, ean: 0190149251231,

4.2 out of 5 stars with 125 reviews
● Specification: Measuring Range: pH: 0.00 ~ 14.00 pH T.: 0.1°C - 60.0°C 32.0-140.0°F Resolution: pH: 0.01pH T.: 0.1°C Precision: pH: +/-0.01pH T.: +/-0.5°C Automatic temperature compensation: 0.1°C - 60.0°C Operating temperature: 0 - 60...


PH-2011R PH Pen Type Meter with Auto Temperature Compensation & Backlight Display
PH-2011R PH Pen Type Meter with Auto Temperature Compensation & Backlight Display
By Tier1
In Stock
$13.21

mpn: PH-2011R, ean: 0635510409144,

4.0 out of 5 stars with 36 reviews
The PH-2011R Tier1 Pen Type pH Meter is the perfect tool for owners of aquariums, water ionizers, and reverse osmosis systems. This meter comes inside a protective plastic carrying case and includes a screwdriver and pH buffer powder. Altogether, thi...


Digital pH Water Quality Meter Tester Monitor with Replaceable BNC Electrode Probe Adjustable Mounting Bracket for Aquarium Tank Waterproof
Digital pH Water Quality Meter Tester Monitor with Replaceable BNC Electrode Probe Adjustable Mounting Bracket for Aquarium Tank Waterproof
By TekcoPlus
In Stock
$38.90
$36.99
You Save: 5%

mpn: PHTK-26, ean: 0713072681571,

4.4 out of 5 stars with 90 reviews
An upgraded version of pH monitor that allows you to replace electrode once electrode is accidentally damaged and lets you mount the pH monitor to your tank or aquarium with the included adjustable mounting bracket. Features: Reliable and stable...


pH Meter, Jellas pH-061 0.01 Resolution Pocket Size pH Meter Water Quality Tester with 1.2” Arc LCD Display for Household Drinking Water, Pool and Aquarium Water pH Test.
pH Meter, Jellas pH-061 0.01 Resolution Pocket Size pH Meter Water Quality Tester with 1.2” Arc LCD Display for Household Drinking Water, Pool and Aquarium Water pH Test.
By Jellas
In Stock
$59.99
$28.99
You Save: 52%

mpn: JLPH-061,

4.5 out of 5 stars with 145 reviews
MULTIPLE USE: Jellas Pocket Size Series pH Meters are the ideal test kits for home and laboratory uses; water, pools, aquariums, spas, hydroponics, food, wine and beer making and more.. HIGH ACCURACY: Highly accurate for measuring range of 0-14 PH, 0...


Digital PH Meter, 0.1 PH High Accuracy Water Quality Tester Pen Portable Pocket Size with 0-14 PH Measurement Range for Household Drinking Water, Aquariums, Swimming Spas(Red)
Digital PH Meter, 0.1 PH High Accuracy Water Quality Tester Pen Portable Pocket Size with 0-14 PH Measurement Range for Household Drinking Water, Aquariums, Swimming Spas(Red)
By Suramayoo
In Stock
$15.99

mpn: 43217-46839, ean: 0702142022895,

4.7 out of 5 stars with 31 reviews
How to Calibrate 1. Use the calibration powder preparing a standard buffer solution. 2. Immerse the electrode in the standard buffer solution under the temperature of 25°C and wait for one minute. 3. Regulate the trimmer with a screwdriver until the...


Water Quality Test Meter Pancellent TDS PH EC Temperature 4 in 1 Set
Water Quality Test Meter Pancellent TDS PH EC Temperature 4 in 1 Set
By Pancellent
In Stock
$29.90
$21.17
You Save: 29%

mpn: DA-TKAH-MS6T, ean: 0702877259535,

4.6 out of 5 stars with 43 reviews
Little Money to Know Water Quality The Pancellent TDS EC PH Meter set is a professional level water test meter. Application: pure water production and drinking, tap water, well water, sea water, fish tank water, swimming pool water, amniotic fluid ea...



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