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Apera InstrumentsAI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display

Apera InstrumentsAI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy, Lcd display

4.5
3,588,909 so'm
UIUZMAR pH Meter for Water, pH Pen Tester Home Brewing, Test the pH Value of Drinking Water, Accurate Cider Brewing pH Meter With Backlight for Reef Tank, Aquarium, Hot Tub, Pool, Spa, Hydroponic

UIUZMAR pH Meter for Water, pH Pen Tester Home Brewing, Test the pH Value of Drinking Water, Accurate Cider Brewing pH Meter With Backlight for Reef Tank, Aquarium, Hot Tub, Pool, Spa, Hydroponic

4.3
1,096,259 so'm
Digital ph Meter, 0.00-14.00 High Precision pH Pen, Auto Calibration and Clear Display, pH Meters for Household Drinking Water, Pools, Aquariums

Digital ph Meter, 0.00-14.00 High Precision pH Pen, Auto Calibration and Clear Display, pH Meters for Household Drinking Water, Pools, Aquariums

3.6
468,879 so'm
Apera Instruments AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

Apera Instruments AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

4.4
3,493,469 so'm
UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool

UIUZMAR Water pH TDS Meter Pen, pH EC Meter Hydroponic, Test the pH TDS Value of Aquarium, 4 in 1 pH/EC/TDS/Temp Meter Digital Water Tester for Drinking Water, Pond Water, Hot Tub, Swimming Pool

4.3
1,978,999 so'm
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

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

4.1
858,819 so'm
UIUZMAR pH Tester for Food Digital pH Meter for Sourdough Starter and Dough Spear Sensor Food pH Kit Works for Fermented Sausages Cheese Sushi Rice Canned Jam Soapmaking and Other Solid Semi-Solid

UIUZMAR pH Tester for Food Digital pH Meter for Sourdough Starter and Dough Spear Sensor Food pH Kit Works for Fermented Sausages Cheese Sushi Rice Canned Jam Soapmaking and Other Solid Semi-Solid

4.6
2,390,429 so'm
Professional pH & Temperature Meter with ATC and Automatic Calibration Function, Water Tester Measurement for Aquarium Hydroponics

Professional pH & Temperature Meter with ATC and Automatic Calibration Function, Water Tester Measurement for Aquarium Hydroponics

3.9
2,172,439 so'm
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

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

4.4
542,059 so'm
MRMS Digital PH Meter, PH Tester Pen Type Water Quality Tester Digital Portable Testing Tool for Hydroponics Swimming Pool

MRMS Digital PH Meter, PH Tester Pen Type Water Quality Tester Digital Portable Testing Tool for Hydroponics Swimming Pool

325,979 so'm
GluckluzDigital PH Meter 7-in-1 TDS/EC/Salt/S G/Temps/ORP Water Quality Tester Waterproof Pen Tester with LCD Display & 0.01 High Accuracy & ATC System & 3 PH Buffer Powder for Pool Aquarium

GluckluzDigital PH Meter 7-in-1 TDS/EC/Salt/S G/Temps/ORP Water Quality Tester Waterproof Pen Tester with LCD Display & 0.01 High Accuracy & ATC System & 3 PH Buffer Powder for Pool Aquarium

1,185,089 so'm
Apera InstrumentsLLC-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

Apera InstrumentsLLC-AI501 PH700 Benchtop Lab pH Meter, 0.01 pH Accuracy, 1-3 Points Auto Calibration, 3-in-1 pH/Temp. Electrode

4.4
11,264,639 so'm
Angju PH Meter & TDS Meter Combo, Upgraded Backlight PH TDS EC & Temperature 4-in-1 Water Quality Tester, High Accuracy Digital Water Tester for Household Drinking, Pool and Aquarium

Angju PH Meter & TDS Meter Combo, Upgraded Backlight PH TDS EC & Temperature 4-in-1 Water Quality Tester, High Accuracy Digital Water Tester for Household Drinking, Pool and Aquarium

3.9
546,149 so'm
BTC INSTRUMENTS PH Meter Digital

BTC INSTRUMENTS PH Meter Digital

5.0
2,245,099 so'm
pH Meter YINMIK Digital pH Tester Professional pH Test Kit with Horizontal Display pH & Temp Water Quality Tester Acidity & Alkalinity Tester for Drinking Water Pool Hydrogen Aquarium Pond Hydroponic

pH Meter YINMIK Digital pH Tester Professional pH Test Kit with Horizontal Display pH & Temp Water Quality Tester Acidity & Alkalinity Tester for Drinking Water Pool Hydrogen Aquarium Pond Hydroponic

4.1
980,739 so'm
bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ

bluelab pH Pen - ± 0.1 pH Accurate, Durable Double Junction Probe, Waterproof & Floats, Auto Temperature Compensation, Easy Calibration - Made in NZ

4.4
4,494,549 so'm
Apera InstrumentsAI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

Apera InstrumentsAI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

4.4
2,319,939 so'm
SKEIDO Digital PH Meter PH Tester Pen Litmus Tester 0.01 PH High Accuracy Water Quality Tester with ATC PH Test Strips Function

SKEIDO Digital PH Meter PH Tester Pen Litmus Tester 0.01 PH High Accuracy Water Quality Tester with ATC PH Test Strips Function

625,209 so'm
VIVOSUNpH and TDS Meter Combo, 0.01ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

VIVOSUNpH and TDS Meter Combo, 0.01ph High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Household Drinking, and Aquarium, UL Certified

4.0
1,378,739 so'm
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

4.4
2,253,289 so'm
Apera Instruments 700 Series Benchtop Meters AI501 1

Apera Instruments 700 Series Benchtop Meters AI501 1

4.4
15,463,139 so'm
YINMIK Food pH Tester, Digital pH Meter for Food with pH Calibration Solution, Food and Temp Test Kit for Sourdough and Bread, Accurate pH Meter for Canning, Meat, Cheese, Solid Samples and Water

YINMIK Food pH Tester, Digital pH Meter for Food with pH Calibration Solution, Food and Temp Test Kit for Sourdough and Bread, Accurate pH Meter for Canning, Meat, Cheese, Solid Samples and Water

4.5
6,082,449 so'm
APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

APERA INSTRUMENTS AI209 Value Series PH20 Waterproof pH Tester Kit, ±0.1 pH Accuracy

4.4
2,761,059 so'm
Apera Instruments PH20 Value pH Meter, Pocket Tester, Waterproof, ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor, Complete kit

Apera Instruments PH20 Value pH Meter, Pocket Tester, Waterproof, ±0.1 pH Accuracy, 0-14 pH Range, ±0.5°C Temperature Sensor, Complete kit

4.5
3,283,539 so'm
4 Pcs Ph Meter for Water, Ph Meter, Ph Pen Is Suitable for Monitor Water Quality from Various Sources Including Tap Water Hot Tubs Home Brewing Indoor Soil Aquariums Hydroponics and Pools

4 Pcs Ph Meter for Water, Ph Meter, Ph Pen Is Suitable for Monitor Water Quality from Various Sources Including Tap Water Hot Tubs Home Brewing Indoor Soil Aquariums Hydroponics and Pools

523,509 so'm
Digital pH Meter for Food, pH Probe for Sourdough and Bread Dough, Checking The pH of Fermenting Sausages and Salami, Waterproof pH Tester for Solid and Liquid Soft Soil Sample…

Digital pH Meter for Food, pH Probe for Sourdough and Bread Dough, Checking The pH of Fermenting Sausages and Salami, Waterproof pH Tester for Solid and Liquid Soft Soil Sample…

4.4
1,850,039 so'm
SKY TECHONOLOGY STI-431 Digital pH meter,ph meter

SKY TECHONOLOGY STI-431 Digital pH meter,ph meter

3.6
3,725,159 so'm
Wellon PH Meter Tester, 0.01 High Accuracy Pocket Size with 0-14 PH Testing Range PH Tester, Digital PH Meter for Water, Water Meter for Hydroponics, Drinking, Pool

Wellon PH Meter Tester, 0.01 High Accuracy Pocket Size with 0-14 PH Testing Range PH Tester, Digital PH Meter for Water, Water Meter for Hydroponics, Drinking, Pool

4.5
301,289 so'm
5 in 1 PH Meter,PH/TDS/EC/Salinity/Temp/Meter for Water, High Accuracy Water Testing Kits for Drinking Water, Pools, Fish Tank, and Hydroponics,(Speech Function)

5 in 1 PH Meter,PH/TDS/EC/Salinity/Temp/Meter for Water, High Accuracy Water Testing Kits for Drinking Water, Pools, Fish Tank, and Hydroponics,(Speech Function)

3,043,279 so'm
MRMS Digital Ph Meters,Digital PH Meters PH Meter 0.01pH Accuracy 0-60 Celsius -14 PH Measurement Range for Water Brewing Food, Aquarium, Pools

MRMS Digital Ph Meters,Digital PH Meters PH Meter 0.01pH Accuracy 0-60 Celsius -14 PH Measurement Range for Water Brewing Food, Aquarium, Pools

5.0
559,879 so'm
Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Growing Tent Indoor Plant Grow

Digital pH Meter pH TDS EC Meter for Hydroponic Nutrient Solution pH and EC Meter with LCD Display TDS Water Tester pH PPM Meter for DWC Setup Aeroponic Growing Tent Indoor Plant Grow

4.4
1,284,449 so'm
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

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

4.4
18,568,849 so'm
ExtechPH220-C Waterproof Palm pH Meter with Cabled Electrode

ExtechPH220-C Waterproof Palm pH Meter with Cabled Electrode

4.4
10,025,859 so'm
Instruments MW102 PH and Temperature Meter

Instruments MW102 PH and Temperature Meter

4.4
6,609,399 so'm
Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy

Apera Instruments AI311 Premium Series PH60 Waterproof pH Pocket Tester Kit, Replaceable Probe, ±0.01 pH Accuracy

4.5
3,034,069 so'm
HJB VISSO Digital PH Meter, 5 in 1 PH/EC/TDS/Salinity/Temp Meter for Water, High Accuracy Digital Multi-Function Water Testing Kits for Water, Fish Tank, Pools and Hydroponics

HJB VISSO Digital PH Meter, 5 in 1 PH/EC/TDS/Salinity/Temp Meter for Water, High Accuracy Digital Multi-Function Water Testing Kits for Water, Fish Tank, Pools and Hydroponics

3.7
903,979 so'm
LABART Hanna HI98107 New pHep, 0.1 pH, with ATC, Waterproof

LABART Hanna HI98107 New pHep, 0.1 pH, with ATC, Waterproof

4.2
1,142,059 so'm
Lab Junction pH Meter,Digital pH Meter MINI 2 POINT CALIBRATION LJ-141 as per Quality Standards

Lab Junction pH Meter,Digital pH Meter MINI 2 POINT CALIBRATION LJ-141 as per Quality Standards

4.2
3,150,869 so'm
OCEAN STAR TECHNOLOGIES Lcd Display Ph Meter For Water Testing Digital Lcd Pocket Pen Type Purity Tester For Filter Pool Aquarium Measuring Instrument With Buffer Solution Pack Of 1

OCEAN STAR TECHNOLOGIES Lcd Display Ph Meter For Water Testing Digital Lcd Pocket Pen Type Purity Tester For Filter Pool Aquarium Measuring Instrument With Buffer Solution Pack Of 1

3.4
348,369 so'm
PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

PH Meter for Water Hydroponics Digital PH Tester Pen 0.01 High Accuracy Pocket Size with 0-14 PH Measurement Range for Household Drinking, Pool and Aquarium

3.9
447,769 so'm
Device PH Meter, 0.01 High Accuracy Pocket Size with 0-14 PH Testing Range PH Tester, Digital PH Meter for Water, Water Meter for Hydroponics, Drinking, Pool

Device PH Meter, 0.01 High Accuracy Pocket Size with 0-14 PH Testing Range PH Tester, Digital PH Meter for Water, Water Meter for Hydroponics, Drinking, Pool

3.0
300,389 so'm
pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System

pH Meter for Water 4 in 1 pH EC TDS Temp Meter for Hydroponics PPM and EC Water Tester Digital pH PPM Meter for Nutrients Growing Hydroponics Gardening DWC hydroponics System

4.6
1,242,749 so'm
IONIX Ph Meter with 6 Buffers | ph Meter for Water Testing | ph Meter | ph Meter for Water Testing | High Accuracy with 0.00-14.00ph ph Tester Temperature and Water Quality Test

IONIX Ph Meter with 6 Buffers | ph Meter for Water Testing | ph Meter | ph Meter for Water Testing | High Accuracy with 0.00-14.00ph ph Tester Temperature and Water Quality Test

4.0
534,509 so'm
GuangYing 5 in 1 PH Meter,PH/TDS/EC/Salinity/Temp Meter for Water, High Accuracy Water Testing Kits for Drinking Water, Pools, Fish Tank, and Hydroponics,with 3 PH Buffer Powders

GuangYing 5 in 1 PH Meter,PH/TDS/EC/Salinity/Temp Meter for Water, High Accuracy Water Testing Kits for Drinking Water, Pools, Fish Tank, and Hydroponics,with 3 PH Buffer Powders

3.8
1,003,989 so'm
Fristaden Lab Benchtop pH Meter – High-Accuracy (0.01 pH), Digital pH Tester for Water, Wine, Beer, and Labs. Includes Electrode and Storage Bench, Easy Calibration.

Fristaden Lab Benchtop pH Meter – High-Accuracy (0.01 pH), Digital pH Tester for Water, Wine, Beer, and Labs. Includes Electrode and Storage Bench, Easy Calibration.

4.1
7,420,629 so'm
eWINNER PH Meter

eWINNER PH Meter

3.6
404,529 so'm
INKBIRD Water TDS Meter Digital Water Quality Tester, EC Meter & Temperature Meter Professional 3 in 1 Accurate PPM Meter, 0~4995 ppm, for Drinking Water, Aquariums, Swimming Pool, Hydroponic Setups

INKBIRD Water TDS Meter Digital Water Quality Tester, EC Meter & Temperature Meter Professional 3 in 1 Accurate PPM Meter, 0~4995 ppm, for Drinking Water, Aquariums, Swimming Pool, Hydroponic Setups

4.3
630,969 so'm
Atree Soil pH Meter, 3-in-1 Soil Tester Kits with Moisture,Light and PH Test for Garden, Farm, Lawn, Indoor & Outdoor (No Battery Needed)

Atree Soil pH Meter, 3-in-1 Soil Tester Kits with Moisture,Light and PH Test for Garden, Farm, Lawn, Indoor & Outdoor (No Battery Needed)

4.0
670,119 so'm
eWINNER Digital pH and TDS Meter Combo Kit (Yellow/White)

eWINNER Digital pH and TDS Meter Combo Kit (Yellow/White)

4.1
565,339 so'm
NALACAL 3-in-1 Digital Soil Moisture Meter with Backlight LCD Display - Measures Temperature Moisture and PH, Ideal for House Plants, Gardens Lawns, Indoor & Outdoor Use

NALACAL 3-in-1 Digital Soil Moisture Meter with Backlight LCD Display - Measures Temperature Moisture and PH, Ideal for House Plants, Gardens Lawns, Indoor & Outdoor Use

1,423,639 so'm
PH Sensor Module, Simple Connection XH2.54 Interface 0‑14 Value PH Electrode Probe Kit with Power Indicator for DIY

PH Sensor Module, Simple Connection XH2.54 Interface 0‑14 Value PH Electrode Probe Kit with Power Indicator for DIY

499,251 so'm
HM Digital blue 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy, TDS-EZ Water Quality TDS Tester, TDS-EZ

HM Digital blue 0-9990 ppm Measurement Range, 1 ppm Resolution, 3% Readout Accuracy, TDS-EZ Water Quality TDS Tester, TDS-EZ

4.4
658,219 so'm
HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

HM Digital PH-200 Waterproof pH Meter, 0-14.00 pH Range, 0.01 pH Resolution, +/- 0.02 pH Readout Accuracy

4.3
1,329,480 so'm
Angju Upgraded 4-in-1 Soil PH Meter, Soil Tester Moisture with Light/PH/Temperatur, Digital Plant Thermometer Test, Moisture Meter Light for Gardening, Farming, Indoor and Outdoor Plants

Angju Upgraded 4-in-1 Soil PH Meter, Soil Tester Moisture with Light/PH/Temperatur, Digital Plant Thermometer Test, Moisture Meter Light for Gardening, Farming, Indoor and Outdoor Plants

3.7
640,949 so'm
R Digital PH Mete, 3-in-1 TDS EC and Tempeatue Mete, Plant Soil MoistueTeste Kit fo Home, Gaden and Hydoponics

R Digital PH Mete, 3-in-1 TDS EC and Tempeatue Mete, Plant Soil MoistueTeste Kit fo Home, Gaden and Hydoponics

1,046,499 so'm
Milwaukee Instruments MW102 PH and Temperature Meter

Milwaukee Instruments MW102 PH and Temperature Meter

4.4
7,305,879 so'm
SKY-TOUCH TDS Digital Water Meter, Quality Tester Filter Pen, Precision Quality Testing Purity of Drinking Water, Pools and Aquariums

SKY-TOUCH TDS Digital Water Meter, Quality Tester Filter Pen, Precision Quality Testing Purity of Drinking Water, Pools and Aquariums

4.0
213,529 so'm
ECVV Portable PH Meters Pen, Digital PH Meter Digital PH Test Pen with 0-14 PH Measurement Range, for Household Drinking, Hydroponics, Pool and Aquarium

ECVV Portable PH Meters Pen, Digital PH Meter Digital PH Test Pen with 0-14 PH Measurement Range, for Household Drinking, Hydroponics, Pool and Aquarium

3.7
218,822 so'm
Biopharm pH/ORP Electrode Storage Solution 8 oz (250 mL), Suitable for All pH Meters

Biopharm pH/ORP Electrode Storage Solution 8 oz (250 mL), Suitable for All pH Meters

5.0
1,124,279 so'm
MRMS 4 in 1 Soil PH Tester Moisture Sunlight Light Temperature Test Meter for Garden Plant Lawns

MRMS 4 in 1 Soil PH Tester Moisture Sunlight Light Temperature Test Meter for Garden Plant Lawns

5.0
614,079 so'm
Milifox 3-in-1 Soil Tester Moisture Meter - Garden Soil Meter Tester for PH Light Moisture, Plant Moisture Meter,Soil Test Meter for Garden Lawn Farm Outdoor Plants(No Battery Needed)

Milifox 3-in-1 Soil Tester Moisture Meter - Garden Soil Meter Tester for PH Light Moisture, Plant Moisture Meter,Soil Test Meter for Garden Lawn Farm Outdoor Plants(No Battery Needed)

4.3
390,459 so'm
Hanna Instruments HI98103 Checker pH Tester with Ph Electrode and Batteries, 0.00 to 14.00 pH, -0.2 pH Accuracy, 0.1 pH Resolution

Hanna Instruments HI98103 Checker pH Tester with Ph Electrode and Batteries, 0.00 to 14.00 pH, -0.2 pH Accuracy, 0.1 pH Resolution

4.2
2,379,689 so'm
Yewhick Digital pH Meter for Food, Food pH Tester with High Accuracy pH Probe for Sourdough and Bread, Food pH Meter for Canning, Meat, Cheese, Solid Samples and Water, 0.01 Resolution

Yewhick Digital pH Meter for Food, Food pH Tester with High Accuracy pH Probe for Sourdough and Bread, Food pH Meter for Canning, Meat, Cheese, Solid Samples and Water, 0.01 Resolution

1,380,190 so'm
KASTWAVE Soil Moisture Meter, 6-in-1 Digital Moisture Meter, with Fertility/Moisture/PH/Temp/Sunlight/Humidity, Soil PH Tester with Dual Probe, Great for Garden, Lawn, Farm, Indoor & Outdoor Use

KASTWAVE Soil Moisture Meter, 6-in-1 Digital Moisture Meter, with Fertility/Moisture/PH/Temp/Sunlight/Humidity, Soil PH Tester with Dual Probe, Great for Garden, Lawn, Farm, Indoor & Outdoor Use

1,510,949 so'm
ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa

ORP Redox Meter Tester -1999~1999mV, 1-Point Calibration, Oxidation Reduction Potential, Aquariums, Swimming Pools, Water Treatment Systems, Aquaculture, Spa

3.9
1,240,699 so'm
ARCHER LIFE HALL TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water, Aquariums, Hydroponics, 0-999 ppm Measuring Range, 1 ppm Increments, 2% Readout Accuracy(White)

ARCHER LIFE HALL TDS Meter Digital Water Quality Tester for RO-RODI System Drinking Water, Aquariums, Hydroponics, 0-999 ppm Measuring Range, 1 ppm Increments, 2% Readout Accuracy(White)

4.3
391,099 so'm
ALDON Innovating Science pH Buffer Calibration Kit - 500mL Each pH 4, 7, 10 & 4oz KCl - The Curated Chemical Collection

ALDON Innovating Science pH Buffer Calibration Kit - 500mL Each pH 4, 7, 10 & 4oz KCl - The Curated Chemical Collection

4.5
2,380,459 so'm
SKEIDO Pocket Pen Water PH Meter Digital Tester PH-009 IA 0.0-14.0pH for Aquarium Pool Water Laboratory

SKEIDO Pocket Pen Water PH Meter Digital Tester PH-009 IA 0.0-14.0pH for Aquarium Pool Water Laboratory

3.6
501,499 so'm
HALAMODO PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.01 Resolution TDS PH EC Temperature 4 in 1 Set for Drinking Water, Hydroponics, RO System, Aquarium, Swimming

HALAMODO PH Meter, TDS Meter Combo, Pool Water Test Kit, PH Tester Digital, PPM Meter, 0.01 Resolution TDS PH EC Temperature 4 in 1 Set for Drinking Water, Hydroponics, RO System, Aquarium, Swimming

1,018,859 so'm
Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each

Apera Instruments AI1113 pH Calibration Buffer Solution Kit (7.00, 4.00), 8 oz. Each

4.6
1,260,909 so'm
eWINNER Digital PH Meter Backlight PH Meter 0.01 High Precision Water Quality Tester PH Range is 0-14 Suitable for Drinking Water Swimming Pool and Aquarium PH Tester Design

eWINNER Digital PH Meter Backlight PH Meter 0.01 High Precision Water Quality Tester PH Range is 0-14 Suitable for Drinking Water Swimming Pool and Aquarium PH Tester Design

2.7
404,529 so'm
Biopharm Ph Buffer Calibration Solution Kit with 3 Packs: Buffers Ph 4.00, Ph 7.00, Ph 10.00-250 Ml (8.4 Fl Oz) Each - Color Coded - Nist Traceable for All Ph Meters

Biopharm Ph Buffer Calibration Solution Kit with 3 Packs: Buffers Ph 4.00, Ph 7.00, Ph 10.00-250 Ml (8.4 Fl Oz) Each - Color Coded - Nist Traceable for All Ph Meters

2,748,899 so'm
AC Infinity pH Meter PRO Kit, High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools

AC Infinity pH Meter PRO Kit, High Precision Digital pH Pen with ±0.01 pH Accuracy and Interchangeable Probe, Nutrient Test pH Meter for Water Hydroponics Plants, Gardening, Aquariums, Swimming Pools

4.0
4,495,569 so'm
PH Tester for Water- Digital PH Meter, 0.00-14.00 High-Density Water Quality Accurate Test Range, Portable with ATC for Swimming Pools Aquariums Spas (Yellow)

PH Tester for Water- Digital PH Meter, 0.00-14.00 High-Density Water Quality Accurate Test Range, Portable with ATC for Swimming Pools Aquariums Spas (Yellow)

5.0
444,569 so'm
UIUZMAR pH Salt TDS Tester for Salt Water Aquarium, Pond Salinity Water Meter for Koi Tank, Swimming Pool, Digital 5 in 1 pH EC PPM Salt Temp Tester for Hydroponics, Reef Marine Tank, Drinking Water

UIUZMAR pH Salt TDS Tester for Salt Water Aquarium, Pond Salinity Water Meter for Koi Tank, Swimming Pool, Digital 5 in 1 pH EC PPM Salt Temp Tester for Hydroponics, Reef Marine Tank, Drinking Water

4.5
2,912,269 so'm
YINMIK pH EC Meter for Water Hydroponics, PPM Meter for Nutrients, Measure pH PPM Conductivity Temperature of Hydroponic Garden Water and Nutrient Solution, EC pH TDS Meter for Water, Aquarium, Pool

YINMIK pH EC Meter for Water Hydroponics, PPM Meter for Nutrients, Measure pH PPM Conductivity Temperature of Hydroponic Garden Water and Nutrient Solution, EC pH TDS Meter for Water, Aquarium, Pool

3.8
1,553,749 so'm
Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory

Digital Combo pH & Temperature Meter, Aquarium Thermometer pH Monitor with Automatic Calibration Function for Fish Tank Hydroponics Aquaculture Laboratory

3.9
2,393,689 so'm
Digital pH Meter, Water Hydroponics Pocket Pen pH Tester pH 0.0 to 14.0 for Hydroponics, Household Drinking, Pool and Aquarium

Digital pH Meter, Water Hydroponics Pocket Pen pH Tester pH 0.0 to 14.0 for Hydroponics, Household Drinking, Pool and Aquarium

147,500 so'm
UIUZMAR pH Meter for Food, pH Pen Tester Bread Yeast, Digital pH Temp Meter for Sourdough Starter, Backlit Food pH Tester for Sushi, Fermentation Food, Canning Food, Cheese, Meat, Semi-Solid Samples

UIUZMAR pH Meter for Food, pH Pen Tester Bread Yeast, Digital pH Temp Meter for Sourdough Starter, Backlit Food pH Tester for Sushi, Fermentation Food, Canning Food, Cheese, Meat, Semi-Solid Samples

4.6
3,415,559 so'm
Flintronic Digital PH Meter, 0.01pH High Accuracy pH Tester, 2% Reading Accuracy PH Temp Water Testers, pH Meters for Household Drinking Water, Pool, Hydroponics, Aquarium

Flintronic Digital PH Meter, 0.01pH High Accuracy pH Tester, 2% Reading Accuracy PH Temp Water Testers, pH Meters for Household Drinking Water, Pool, Hydroponics, Aquarium

3.5
468,879 so'm
Extech RE300 ExStik ORP Meter

Extech RE300 ExStik ORP Meter

2,137,920 so'm
Pawfly TDS Meter 5 in 1 Digital Water Tester, pH Salinity TDS EC & Temperature Meter with pH Buffer Powder, Water Quality Tester for Swimming Pool Drinking Water Aquarium Hot Tub Saltwater & Spa

Pawfly TDS Meter 5 in 1 Digital Water Tester, pH Salinity TDS EC & Temperature Meter with pH Buffer Powder, Water Quality Tester for Swimming Pool Drinking Water Aquarium Hot Tub Saltwater & Spa

4.5
1,395,109 so'm
Flysocks pH Meter 4 in 1, Water Quality Tester for pH/TDS/EC/Temperature, IP67 Digital pH Meter with Auto Calibration and LCD for Hydroponics, Garden, Pool, Aquarium

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