Potency Tester(87)
Uses item details. Price when purchased online
Clearance! Soovim Digital pH Meter Pen, High Precision Tester for Water Aquarium Hydroponics, Yellow 15.5x3.1cm $4.99
$499
current price $4.99Clearance! Soovim Digital pH Meter Pen, High Precision Tester for Water Aquarium Hydroponics, Yellow 15.5x3.1cm
Digital PH Meter, Pool Salt Tester, Multifunctional 7 in 1 Salinity/TDS/EC/Temp/ORP/S. G/PH, Water Quality Testing Kit for Tester Drinking Water,Swimming Pool, Sea Water, Aquarium, Hydroponics $25.69
$2569
current price $25.69Digital PH Meter, Pool Salt Tester, Multifunctional 7 in 1 Salinity/TDS/EC/Temp/ORP/S. G/PH, Water Quality Testing Kit for Tester Drinking Water,Swimming Pool, Sea Water, Aquarium, Hydroponics
3.7 out of 5 stars
Best seller TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water $10.99 Was $19.99
Best seller
Now$1099
current price Now $10.99, Was $19.99$19.99
TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water
4.1 out of 5 stars
Best seller MERYDI Drinking Water Testing Kit 16 in 1 Test Strips for Well & Tap Water 100 Count $11.99 Was $21.99
Best seller
Now$1199
current price Now $11.99, Was $21.99$21.99
MERYDI Drinking Water Testing Kit 16 in 1 Test Strips for Well & Tap Water 100 Count
4.6 out of 5 stars
GJX Digital PH Meter Tester 0.01 Accuracy, Portable Pen PH Tester For Water Pool, Aquarium, Hydroponics, Spa, Cosmetics, Foods, And Laboratory Testing $8.10
$810
current price $8.10GJX Digital PH Meter Tester 0.01 Accuracy, Portable Pen PH Tester For Water Pool, Aquarium, Hydroponics, Spa, Cosmetics, Foods, And Laboratory Testing
Best seller 10 in 1 Digital Water Tester Meter, PH/TDS/EC/Salinity/SG/ORP/Hydrogen-rich/Resistivity/Temp/Nutrient Solution, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester $29.99 Was $39.99
Best seller
Now$2999
current price Now $29.99, Was $39.99$39.99
10 in 1 Digital Water Tester Meter, PH/TDS/EC/Salinity/SG/ORP/Hydrogen-rich/Resistivity/Temp/Nutrient Solution, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester
3.5 out of 5 stars
pH Tests - Monitor Acid-Alkaline Balance + Minerals (Calcium, Potassium, Magnesium) $13.95
$1395
current price $13.95pH Tests - Monitor Acid-Alkaline Balance + Minerals (Calcium, Potassium, Magnesium)
4.3 out of 5 stars
Clearance 100pcs pH Test Strips, Universal pH 0-14, Testing pH for Urine Saliva Drinking Water Labs Aquariums Gyms Pools (100) $7.35 Was $8.90
Clearance
Now$735
current price Now $7.35, Was $8.90$8.90
100pcs pH Test Strips, Universal pH 0-14, Testing pH for Urine Saliva Drinking Water Labs Aquariums Gyms Pools (100)
GJX 2026 New Digital Ph Meter,Water Quality Tester,Water Ph Tester with 0-14Ph Measurement Range,Suitable for Drinking Water,Hydroponics,Aquarium,Swimming Pool,High Precision 0.01Ph Pen Tester $9.19
$919
current price $9.19GJX 2026 New Digital Ph Meter,Water Quality Tester,Water Ph Tester with 0-14Ph Measurement Range,Suitable for Drinking Water,Hydroponics,Aquarium,Swimming Pool,High Precision 0.01Ph Pen Tester
Professional Food PH Meter High Accuracy Sensor Temp Acidity Tester for Brewing Cheese Meat Canning Dough Soil PH Meter $22.39
$2239
current price $22.39Professional Food PH Meter High Accuracy Sensor Temp Acidity Tester for Brewing Cheese Meat Canning Dough Soil PH Meter
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 $17.99
$1799
current price $17.99VIVOSUN 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
RETON PH Test Strips 0-14, 100PCS Universal PH Measure Paper Ph-Indicator Strip to Test Drinking Water, Food, Pools, Aquariums, Saliva, Urine, Lab Monitoring $6.99
$699
current price $6.99RETON PH Test Strips 0-14, 100PCS Universal PH Measure Paper Ph-Indicator Strip to Test Drinking Water, Food, Pools, Aquariums, Saliva, Urine, Lab Monitoring
OAZOUF 7 in 1 Digital Water Tester, PH/TDS/EC/SALT/SG/ORP/TEMP, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester $26.92 Was $31.49
Now$2692
current price Now $26.92, Was $31.49$31.49
OAZOUF 7 in 1 Digital Water Tester, PH/TDS/EC/SALT/SG/ORP/TEMP, Water Tester Pen for Drinking Water Hydroponics Plant Fish Tank, Pool Salt Tester
4 out of 5 stars
QARUN Multi Diagnostic Urine Test Strips, Accurate Convenient, Checks Glucose, PH, Protein and More $8.51 Was $9.79
Now$851
current price Now $8.51, Was $9.79$9.79
QARUN Multi Diagnostic Urine Test Strips, Accurate Convenient, Checks Glucose, PH, Protein and More
Saliva and Urine pH Test Strips,100 Paper pH Strips for Tracking Alkaline & Acid Levels in Body, Fast, Accurate pH Testing from 4.5-9.0 $7.99
$799
current price $7.99Saliva and Urine pH Test Strips,100 Paper pH Strips for Tracking Alkaline & Acid Levels in Body, Fast, Accurate pH Testing from 4.5-9.0
4.3 out of 5 stars
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool $27.99 Was $39.99
Now$2799
current price Now $27.99, Was $39.99$39.99
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool
4.2 out of 5 stars
Deal Water Testing Kits for Drinking Water: 125 Strips 16 in 1 Well and Drinking Water Test Kit, EASYTEST Water Test Strips with Hardness, pH, Lead, Iron, Copper, Chlorine, and More $13.98
Deal
$1398
current price $13.98Water Testing Kits for Drinking Water: 125 Strips 16 in 1 Well and Drinking Water Test Kit, EASYTEST Water Test Strips with Hardness, pH, Lead, Iron, Copper, Chlorine, and More
4.4 out of 5 stars
Best seller 100pcs Urine Sample Test Strip Dipstick 11 Parameter Urinalysis Reagent PH Value Test Paper $12.99
Best seller
$1299
current price $12.99100pcs Urine Sample Test Strip Dipstick 11 Parameter Urinalysis Reagent PH Value Test Paper
4.7 out of 5 stars
Clearance 1 Pack pH Test Strips,80 Strips pH.1-14 Universal pH Test Paper Litmus Test Paper Soap Making Testing Strips for Water Wine Saliva Urine Soil Testing Pet Food and Diet pH Monitoring (Sealed Pack) From $1.58
Clearance
From$158
1 Pack pH Test Strips,80 Strips pH.1-14 Universal pH Test Paper Litmus Test Paper Soap Making Testing Strips for Water Wine Saliva Urine Soil Testing Pet Food and Diet pH Monitoring (Sealed Pack)
5 out of 5 stars
2San Home Water Test, 8-in-1 Water Testing for Bacteria, Lead, Iron, Copper, pH, Chlorine, Hardness, Nitrites, Easy At-Home Use for Tap & Well Water, Fast, Reliable Results Without a Lab $15.79
$1579
current price $15.792San Home Water Test, 8-in-1 Water Testing for Bacteria, Lead, Iron, Copper, pH, Chlorine, Hardness, Nitrites, Easy At-Home Use for Tap & Well Water, Fast, Reliable Results Without a Lab
4.8 out of 5 stars
Asunby 3-in-1 Water Quality Tester TDS Meter, EC & Temperature Monitor | 0-9990ppm Accuracy | for Drinking Water, Aquariums, Pools & RO Systems $10.79 Was $11.99
Now$1079
current price Now $10.79, Was $11.99$11.99
Asunby 3-in-1 Water Quality Tester TDS Meter, EC & Temperature Monitor | 0-9990ppm Accuracy | for Drinking Water, Aquariums, Pools & RO Systems
4.3 out of 5 stars
NefLaca 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen Drinking Water Aquariums Hydroponic Cooking Tester Measure $22.87
$2287
current price $22.87NefLaca 7 in 1 Digital LCD PH/TDS/EC/ORP/TEMP/SG/Salinity Water Quality Tester Meter Pen Drinking Water Aquariums Hydroponic Cooking Tester Measure
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools $7.99 Was $9.20
Now$799
current price Now $7.99, Was $9.20$9.20
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools
4.6 out of 5 stars
GJX Digital PH Meter Pen High Accuracy Portable Tester for Water,Soil and Food $9.44
$944
current price $9.44GJX Digital PH Meter Pen High Accuracy Portable Tester for Water,Soil and Food
GJX 2026 New Digital Ph Meter,Water Quality Tester,Water Ph Tester with 0-14Ph Measurement Range,Suitable for Drinking Water,Hydroponics,Aquarium,Swimming Pool. High Precision 0.01Ph Pen Tester $8.18
$818
current price $8.18GJX 2026 New Digital Ph Meter,Water Quality Tester,Water Ph Tester with 0-14Ph Measurement Range,Suitable for Drinking Water,Hydroponics,Aquarium,Swimming Pool. High Precision 0.01Ph Pen Tester
Best seller Zero Water Tester,Drinking Water Tester,Tds Water Tester,0-9990 Ppm Meter Water Quality Tester,Portable Water Tester for Drinking Water,Tds Meter Digital Water Tester,1 Pack — LAILLSH 2026 New From $1.65
Best seller
From$165
Zero Water Tester,Drinking Water Tester,Tds Water Tester,0-9990 Ppm Meter Water Quality Tester,Portable Water Tester for Drinking Water,Tds Meter Digital Water Tester,1 Pack — LAILLSH 2026 New
4.4 out of 5 stars
Digital pH TDS & EC Temp Meter for Water,pH Pen and PPM Tester TDS-EC-Temperature Meter,PH Tester with 0-14.00pH and 0.01 Accuracy,TDS EC PH Meters for Aquarium,Hydroponic,RO System $6.00 Was $15.99
Now$600
current price Now $6.00, Was $15.99$15.99
Digital pH TDS & EC Temp Meter for Water,pH Pen and PPM Tester TDS-EC-Temperature Meter,PH Tester with 0-14.00pH and 0.01 Accuracy,TDS EC PH Meters for Aquarium,Hydroponic,RO System
VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, 3-Point Auto Calibration, Portable Tester Kit with Calibration Powder Packets, Temperature Probe, Carrying Case, for Drinking Water, Hydroponics $234.99
$23499
current price $234.99VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, 3-Point Auto Calibration, Portable Tester Kit with Calibration Powder Packets, Temperature Probe, Carrying Case, for Drinking Water, Hydroponics
Rapid Urine Test Kit, 100 Strips, Checks 12 Indicators: Glucose, Protein, PH More $14.22 Was $14.96
Now$1422
current price Now $14.22, Was $14.96$14.96
Rapid Urine Test Kit, 100 Strips, Checks 12 Indicators: Glucose, Protein, PH More
5 out of 5 stars
Nazarian Portable Digital pH Meter Pen with LCD Display High Accuracy Water Quality Tester for Aquarium, Pool, Hydroponics, Wine & Drinking Water Pocket-Size pH & TDS Meter with ATC Calibration $12.99
$1299
current price $12.99Nazarian Portable Digital pH Meter Pen with LCD Display High Accuracy Water Quality Tester for Aquarium, Pool, Hydroponics, Wine & Drinking Water Pocket-Size pH & TDS Meter with ATC Calibration
5 out of 5 stars
Fermentaholics Instant Read pH Test Strips Dispenser pH Strips pH Range 0-6 $13.59
$1359
current price $13.59Fermentaholics Instant Read pH Test Strips Dispenser pH Strips pH Range 0-6
4.8 out of 5 stars
8 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium $48.99
$4899
current price $48.998 IN 1 Water Quality Tester PH Test Pen Salinity/PH/TDS/EC/ORP/SG/H2/TEMP Drinking Water Test Analysis Instruments For Aquarium
General Hydroponics pH Test Kit 1 oz $10.65 Was $13.19 $3.55/ea
Now$1065
current price Now $10.65, Was $13.19$13.19
$3.55/ea
General Hydroponics pH Test Kit 1 oz
4.3 out of 5 stars
Milwaukee pH600-BOX LED Pocket pH Tester with Calibration Solution $39.99
$3999
current price $39.99Milwaukee pH600-BOX LED Pocket pH Tester with Calibration Solution
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
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
NFTIGB High Accuracy Digital PH Electrode Probe ABS Non Rechargeable Sensor Tester Set 0-14 Range for Laboratory Water Quality Testing (8.66 inches / 22 cm) $17.14
$1714
current price $17.14NFTIGB High Accuracy Digital PH Electrode Probe ABS Non Rechargeable Sensor Tester Set 0-14 Range for Laboratory Water Quality Testing (8.66 inches / 22 cm)
GJX Digital pH Meter, Pen-Type Water Quality Tester with ATC, Accurate pH Test Kit for Aquariums, Hydroponics, Pools, and Drinking Water $6.52
$652
current price $6.52GJX Digital pH Meter, Pen-Type Water Quality Tester with ATC, Accurate pH Test Kit for Aquariums, Hydroponics, Pools, and Drinking Water
VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, Pocket Tester Kit with Calibration Powder Packets, VA Display Screen, for Drinking Water, Hydroponics, and Aquarium Water Quality Testing $66.90
$6690
current price $66.90VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, Pocket Tester Kit with Calibration Powder Packets, VA Display Screen, for Drinking Water, Hydroponics, and Aquarium Water Quality Testing
TDS Water Tester, Drinking Water Tester, 0-9990 PPM Meter Water Quality Tester, Portable Water Tester for Drinking Water, TDS Meter Digital Water Tester, 1 Pack, Deep Blue $10.01 Was $13.99
Now$1001
current price Now $10.01, Was $13.99$13.99
TDS Water Tester, Drinking Water Tester, 0-9990 PPM Meter Water Quality Tester, Portable Water Tester for Drinking Water, TDS Meter Digital Water Tester, 1 Pack, Deep Blue
Urine and Saliva pH Test Strips - 200ct + 2 Colorimetric Blocks - High Precision and Easy Test pH Strips - Testing Alkaline and Acid Levels in The Body, Get Highly Accurate Results in Seconds $12.69
$1269
current price $12.69Urine and Saliva pH Test Strips - 200ct + 2 Colorimetric Blocks - High Precision and Easy Test pH Strips - Testing Alkaline and Acid Levels in The Body, Get Highly Accurate Results in Seconds
4.7 out of 5 stars
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