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$231.99
Extech PH220-C Waterproof Palm Ph Meter With Cabled Electrode
Amazon.com
Free shipping
$231.99
Extech PH220-C Waterproof Palm Ph Meter With Cabled Electrode
Amazon.com
$8.99
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
Amazon.com
$8.99
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
Amazon.com
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Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
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Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
$99.94
$250.00
Bonvoisin PH Meter For Water Real-Time PH, Temperature, Voltage Measurements In Water With Calibration, Digital PH Tester For Hydroponic Systems, Plant Grow, Pool
responsiml.com
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$99.94
$250.00
Bonvoisin PH Meter For Water Real-Time PH, Temperature, Voltage Measurements In Water With Calibration, Digital PH Tester For Hydroponic Systems, Plant Grow, Pool
responsiml.com
$99.50
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$99.50
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$79.99
$159.98
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
responsiml.com
50% off
$79.99
$159.98
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
responsiml.com
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$239.99
HM Digital HM-100 Ph/EC/TDS/Temp Monitor For Water Testing
Hydrobuilder
$239.99
HM Digital HM-100 Ph/EC/TDS/Temp Monitor For Water Testing
Hydrobuilder
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$131.15
Oakton Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.1 Ph, 0.1 Ph Ph Resolution, 3 Calibration Points, Auto Model: 3563405
Grainger
$131.15
Oakton Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.1 Ph, 0.1 Ph Ph Resolution, 3 Calibration Points, Auto Model: 3563405
Grainger
$195.60
Extech Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points Model: PH100
Grainger
$195.60
Extech Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points Model: PH100
Grainger
$20.29
Vivosun Ph & TDS Combo Meter - High Accuracy Testing Tools
Hydrobuilder
$20.29
Vivosun Ph & TDS Combo Meter - High Accuracy Testing Tools
Hydrobuilder
$711.75
OAKTON PH 6+ Ph/Ion Meter Kit
Globaltestsupply.com
$711.75
OAKTON PH 6+ Ph/Ion Meter Kit
Globaltestsupply.com
$99.52
$319.98
2025 Digital Pool Water Tester Smart Water Monitor - Chlorine, ORP, Salinity, Ph, EC, Temp TDS Meter - Digital Hot Tub Water Tester For Pools, Aquarium Spas
responsiml.com
68% off
$99.52
$319.98
2025 Digital Pool Water Tester Smart Water Monitor - Chlorine, ORP, Salinity, Ph, EC, Temp TDS Meter - Digital Hot Tub Water Tester For Pools, Aquarium Spas
responsiml.com
$473.41
OAKTON 35660-10 PH250 Waterproof Ph And ORP Handheld Meter Kit, 500 Points
Globaltestsupply.com
$473.41
OAKTON 35660-10 PH250 Waterproof Ph And ORP Handheld Meter Kit, 500 Points
Globaltestsupply.com
$234.99
Handheld Ph Meter Waterproof Ph Meter With 0.01 Resolution - 1 / Each / 1 / Each
Grayline Medical
$234.99
Handheld Ph Meter Waterproof Ph Meter With 0.01 Resolution - 1 / Each / 1 / Each
Grayline Medical
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com
222
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com
$449.00
Extech SDL100 Water Quality Meter PH/ORP SD Logger
TEquipment
2
$449.00
Extech SDL100 Water Quality Meter PH/ORP SD Logger
TEquipment
$140.00
HORIBA Laquatwin Ph 11 Pocket Water Quality Meters
Activated Carbon Depot
1
$140.00
HORIBA Laquatwin Ph 11 Pocket Water Quality Meters
Activated Carbon Depot
$42.49
Hach PH STRIPS PH Paper Test Strips, 0 To 14 PH Range, 100 Strips/Pk | Cole-Parmer
Cole-Parmer
$42.49
Hach PH STRIPS PH Paper Test Strips, 0 To 14 PH Range, 100 Strips/Pk | Cole-Parmer
Cole-Parmer
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
3
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$31.40
HM Digital PH-80, Hydrotester
Selectum
625
$31.40
HM Digital PH-80, Hydrotester
Selectum
$77.30
Hanna 0 To 14 Ph, Ph Tester - 32 To 122° F, Accurate Up To 0.2 Ph | Part HI98103
MSC Direct
$77.30
Hanna 0 To 14 Ph, Ph Tester - 32 To 122° F, Accurate Up To 0.2 Ph | Part HI98103
MSC Direct
$79.96
HM Digital PH-200 Waterproof Ph/Temp Meter For Testing
Hydrobuilder
$79.96
HM Digital PH-200 Waterproof Ph/Temp Meter For Testing
Hydrobuilder
$59.00
$135.70
Hach - 183700 - Hardness, Iron, And Ph Test Kit, Model HA-62
USelessca shop
56% off
$59.00
$135.70
Hach - 183700 - Hardness, Iron, And Ph Test Kit, Model HA-62
USelessca shop
$15.99
5-In-1 Water Quality Tester With PH, TDS, EC, Temperature & Salinity Analysis Features, IP67 Waterproof & Backlit Display
Digitalzakka
$15.99
5-In-1 Water Quality Tester With PH, TDS, EC, Temperature & Salinity Analysis Features, IP67 Waterproof & Backlit Display
Digitalzakka
$16.95
Hydrion Lo Ion Ph Test Kit, Ph 1.0 To 11.0
Carolina Biological Supply
$16.95
Hydrion Lo Ion Ph Test Kit, Ph 1.0 To 11.0
Carolina Biological Supply
$162.00
Elite Ph Pocket Tester, Thermo Orion - ELITEPH
The Lab Depot
$162.00
Elite Ph Pocket Tester, Thermo Orion - ELITEPH
The Lab Depot
$43.99
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightIntheBox.com
$43.99
7-In-1 TDS Water Tester 0.01 High Accuracy Digital Ph Meter PH/ TDS/ EC/ Salinity/ Temperature Tester PPM Water Tester For Drinking Water Hydroponics
LightIntheBox.com
$543.95
$609.95
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With Ph Probe
MSE Supplies
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$609.95
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With Ph Probe
MSE Supplies
$79.99
HM Digital (PH-80) Hydrotester Water Ph Temperature Tester Meter Pen
Isopure Water
$79.99
HM Digital (PH-80) Hydrotester Water Ph Temperature Tester Meter Pen
Isopure Water
$96.70
TAYLOR WATER TECHNOLOGIES - SPECIALTY PH TEST KIT RANGE 6.8-8.2 -
Pool Spa Supplies
$96.70
TAYLOR WATER TECHNOLOGIES - SPECIALTY PH TEST KIT RANGE 6.8-8.2 -
Pool Spa Supplies
$6.69
Hydrion Ph Test Paper Strips With Dispenser - 93 S/R Instacheck Level 0-13
WebstaurantStore
$6.69
Hydrion Ph Test Paper Strips With Dispenser - 93 S/R Instacheck Level 0-13
WebstaurantStore
$498.50
Extech 0 To 14 Ph, Ph/ORP Tester - Accurate Up To 0.02 Ph | Part SDL100
MSC Direct
2
$498.50
Extech 0 To 14 Ph, Ph/ORP Tester - Accurate Up To 0.02 Ph | Part SDL100
MSC Direct
$39.99
Tilswall Pool Water Quality Tester 2-In-1 - Ph & Chlorine
Tilswall US
$39.99
Tilswall Pool Water Quality Tester 2-In-1 - Ph & Chlorine
Tilswall US
How to Measure the pH of Water
How to Measure the pH of Water
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wikiHowMeredith Juncker, PhD
8 Best pH Meters In 2025 (Ranked By Quality)
8 Best pH Meters In 2025 (Ranked By Quality)
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plumbinglab.com
IOT based Water Quality monitoring using Arduino, pH Sensor, Nodemcu ESP8266 & Blynk
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YouTubeElectronic Clinic
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How To Test Swimming Pool Water Chlorine and PH Level With Test Kit
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YouTubeHomeowner Repair
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Shop ph water testing

Sponsored
About our ads
$231.99
Extech PH220-C Waterproof Palm Ph Meter With Cabled Electrode
Amazon.com
Free shipping
$231.99
Extech PH220-C Waterproof Palm Ph Meter With Cabled Electrode
Amazon.com
$8.99
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
Amazon.com
$8.99
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
Amazon.com
$20.59
$31.99
Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
35% off
$20.59
$31.99
Ph Meter, 3-In-1 TDS Meter Digital Water Tester With 0.01 High Precision, Water Tester For Drinking Water With 0-14 Ph Test Range, TDS/Temp/Ph Tester
Amazon.com
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
$254.48
Extech Ph Meter: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points, Mv/Ph/Temp Model: PH220-C
Grainger
$99.94
$250.00
Bonvoisin PH Meter For Water Real-Time PH, Temperature, Voltage Measurements In Water With Calibration, Digital PH Tester For Hydroponic Systems, Plant Grow, Pool
responsiml.com
60% off
$99.94
$250.00
Bonvoisin PH Meter For Water Real-Time PH, Temperature, Voltage Measurements In Water With Calibration, Digital PH Tester For Hydroponic Systems, Plant Grow, Pool
responsiml.com
$99.50
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$99.50
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$79.99
$159.98
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
responsiml.com
50% off
$79.99
$159.98
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
responsiml.com
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$239.99
HM Digital HM-100 Ph/EC/TDS/Temp Monitor For Water Testing
Hydrobuilder
$239.99
HM Digital HM-100 Ph/EC/TDS/Temp Monitor For Water Testing
Hydrobuilder
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$131.15
Oakton Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.1 Ph, 0.1 Ph Ph Resolution, 3 Calibration Points, Auto Model: 3563405
Grainger
$131.15
Oakton Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.1 Ph, 0.1 Ph Ph Resolution, 3 Calibration Points, Auto Model: 3563405
Grainger
$195.60
Extech Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points Model: PH100
Grainger
$195.60
Extech Pocket Ph Tester: 0 Ph To 14 Ph, +/-0.01 Ph, 0.01 Ph Ph Resolution, 3 Calibration Points Model: PH100
Grainger
$20.29
Vivosun Ph & TDS Combo Meter - High Accuracy Testing Tools
Hydrobuilder
$20.29
Vivosun Ph & TDS Combo Meter - High Accuracy Testing Tools
Hydrobuilder
$711.75
OAKTON PH 6+ Ph/Ion Meter Kit
Globaltestsupply.com
$711.75
OAKTON PH 6+ Ph/Ion Meter Kit
Globaltestsupply.com
$99.52
$319.98
2025 Digital Pool Water Tester Smart Water Monitor - Chlorine, ORP, Salinity, Ph, EC, Temp TDS Meter - Digital Hot Tub Water Tester For Pools, Aquarium Spas
responsiml.com
68% off
$99.52
$319.98
2025 Digital Pool Water Tester Smart Water Monitor - Chlorine, ORP, Salinity, Ph, EC, Temp TDS Meter - Digital Hot Tub Water Tester For Pools, Aquarium Spas
responsiml.com
$473.41
OAKTON 35660-10 PH250 Waterproof Ph And ORP Handheld Meter Kit, 500 Points
Globaltestsupply.com
$473.41
OAKTON 35660-10 PH250 Waterproof Ph And ORP Handheld Meter Kit, 500 Points
Globaltestsupply.com
$234.99
Handheld Ph Meter Waterproof Ph Meter With 0.01 Resolution - 1 / Each / 1 / Each
Grayline Medical
$234.99
Handheld Ph Meter Waterproof Ph Meter With 0.01 Resolution - 1 / Each / 1 / Each
Grayline Medical
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com
222
$46.49
Pentair 4-In-1 OTO Test Kit - Chlorine, Ph, Acid Demand, & Total Alkalinity R151186
PoolZoom.com

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