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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
$201.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
Free shipping
$201.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
$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
$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
$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
2K+
35% off
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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
$301.34
Extech Ph/Mv/Temperature Meter Kit: 0 Ph To 14 Ph, +/-0.02 Ph, 0.01 Ph Ph Resolution, Mv/Ph/Temp Model: OYSTER-15
Grainger
$301.34
Extech Ph/Mv/Temperature Meter Kit: 0 Ph To 14 Ph, +/-0.02 Ph, 0.01 Ph Ph Resolution, Mv/Ph/Temp Model: OYSTER-15
Grainger
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$73.37
OAKTON WD-35634-05 Ecotestr Ph1 Waterproof Pocket Tester, 0 To 14 Ph
Globaltestsupply.com
1
$73.37
OAKTON WD-35634-05 Ecotestr Ph1 Waterproof Pocket Tester, 0 To 14 Ph
Globaltestsupply.com
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$84.35
$165.51
Water Quality Tester,Wall-Mounted Water Monitor,For PH, EC, TDS, Salt, S.G, CF, ORP, Temperature
toshomx
49% off
$84.35
$165.51
Water Quality Tester,Wall-Mounted Water Monitor,For PH, EC, TDS, Salt, S.G, CF, ORP, Temperature
toshomx
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$57.99
Hydrogen Water Tester 4 in 1 Ph ORP H2 Temperature Meter Accurate Digital Water Quality Test Kit For Drinking Water
Home Depot
Free shipping
$57.99
Hydrogen Water Tester 4 in 1 Ph ORP H2 Temperature Meter Accurate Digital Water Quality Test Kit For Drinking Water
Home Depot
$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
$1,116.90
OAKTON PH 450 Ph Meter Kit
Globaltestsupply.com
$1,116.90
OAKTON PH 450 Ph Meter Kit
Globaltestsupply.com
$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
$14.02
$16.49
Buy Ph Strips | Ph Test Strips | Enzymedica
Enzymedica
15
14% off
$14.02
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Buy Ph Strips | Ph Test Strips | Enzymedica
Enzymedica
$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
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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
$66.89
$90.30
6-In-1 Waterproof Ph/ORP/TDS/EC (Conductivity)/Salinity/Temp Meter Pocket Size Multi-Parameter Water Quality Tester Kit Replaceable ORP Probe
Seanluciwuss
25% off
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$90.30
6-In-1 Waterproof Ph/ORP/TDS/EC (Conductivity)/Salinity/Temp Meter Pocket Size Multi-Parameter Water Quality Tester Kit Replaceable ORP Probe
Seanluciwuss
$132.04
Hercules 35272 Electronic Ph Tester (Waterproof) | Supplyhouse.Com
SupplyHouse.com
$132.04
Hercules 35272 Electronic Ph Tester (Waterproof) | Supplyhouse.Com
SupplyHouse.com
$58.00
$133.40
Hach - 183701 - Hardness, Iron, And Ph Test Kit, Model HA-62A
USelessca shop
56% off
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Hach - 183701 - Hardness, Iron, And Ph Test Kit, Model HA-62A
USelessca shop
$525.99
Oakton Instruments Waterproof Ph 150 Meter - METER, PH 150 - WD-35614-32 - 1 Each / Each
Grayline Medical
$525.99
Oakton Instruments Waterproof Ph 150 Meter - METER, PH 150 - WD-35614-32 - 1 Each / Each
Grayline Medical
$41.97
$83.94
PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Meter | Uplift Essentials
Inspire Uplift
Free shipping
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$41.97
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PH Meter And TDS Meter Digital Water Quality Tester With LCD Display - Ph Meter | Uplift Essentials
Inspire Uplift
$417.00
Orion Pure Water Ph Test Kit
The Lab Depot
$417.00
Orion Pure Water Ph Test Kit
The Lab Depot
$45.97
$91.94
5 in 1 Digital Water Quality Tester For PH TDS EC Salinity And Temperature - Without Backlight | Uplift Essentials
Inspire Uplift
Free shipping
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5 in 1 Digital Water Quality Tester For PH TDS EC Salinity And Temperature - Without Backlight | Uplift Essentials
Inspire Uplift
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AZ-8601 Ph Meter Water Quality Meter Handheld Digital Waterproof Ph Tester Ph And Mv Measurement In One With ATC Function Probe 0.0014.00 Ph Accuracy ±0.02 Ph Resolution 0.01 AZ8601
responsiml.com
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AZ-8601 Ph Meter Water Quality Meter Handheld Digital Waterproof Ph Tester Ph And Mv Measurement In One With ATC Function Probe 0.0014.00 Ph Accuracy ±0.02 Ph Resolution 0.01 AZ8601
responsiml.com
$98.77
$398.00
Desktop Digital PH Meter, 6 in 1 Lab PH Meter, Water Quality Detector, With Temperature Compensation, Data Saving Function, For Aquarium, Laboratory, Fishery, Farm
responsiml.com
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Desktop Digital PH Meter, 6 in 1 Lab PH Meter, Water Quality Detector, With Temperature Compensation, Data Saving Function, For Aquarium, Laboratory, Fishery, Farm
responsiml.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
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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
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$101.94
5 in 1 Digital Water Quality Tester For PH TDS EC Salinity And Temperature - With Backlight | Uplift Essentials
Inspire Uplift
Free shipping
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$101.94
5 in 1 Digital Water Quality Tester For PH TDS EC Salinity And Temperature - With Backlight | Uplift Essentials
Inspire Uplift
$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
$45.00
5-In-1 Water Quality PH EC CF TDS PPM Temperature Test Meter PLS Read 060525. Moisture & Ph Meters.
eBay
Free shipping
$45.00
5-In-1 Water Quality PH EC CF TDS PPM Temperature Test Meter PLS Read 060525. Moisture & Ph Meters.
eBay
$232.65
Digital Ph Meter 0.01 Portable High Accuracy Water Test Pen Aquarium
eBay
Free shipping
$232.65
Digital Ph Meter 0.01 Portable High Accuracy Water Test Pen Aquarium
eBay
$9.49
$13.48
API Pond Wide Range Ph Test Kit 160-Test Pond Water Test Kit, 1 Count
Chewy.com
18
29% off
$9.49
$13.48
API Pond Wide Range Ph Test Kit 160-Test Pond Water Test Kit, 1 Count
Chewy.com
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
$39.40
$58.08
RCYAGO 7 in 1 Ph/RH/EC/CF/TDS(PPM)/ORP/Temperature Rechargeable Multi-Parameter Wall-Mount Water Quality Tester
USelessca shop
32% off
$39.40
$58.08
RCYAGO 7 in 1 Ph/RH/EC/CF/TDS(PPM)/ORP/Temperature Rechargeable Multi-Parameter Wall-Mount Water Quality Tester
USelessca shop
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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YouTubeJohn The Pool Expert
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YouTubeAqua Ionizer Pro
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YouTubeUtah State University Extension
Testing Pool Water - pH, Acid Demand & Total Alkalinity
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Testing Pool Water - pH, Acid Demand & Total Alkalinity
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How To Test Swimming Pool Water Chlorine and PH Level With Test Kit
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YouTubeMed Lab Diagnostics
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pH water test with the Simplex Health pH Reagent drops
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YouTubeSimplexHealth Water Test Kits
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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
$201.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
Free shipping
$201.00
Hach Pocket Pro Ph Tester, Ph Meter For Water Analysis Ph & Temp Testing, Large LCD Screen, Replaceable Batteries, Built-In Diagnostics, 9531000
Amazon.com
$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
$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
$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
2K+
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
$301.34
Extech Ph/Mv/Temperature Meter Kit: 0 Ph To 14 Ph, +/-0.02 Ph, 0.01 Ph Ph Resolution, Mv/Ph/Temp Model: OYSTER-15
Grainger
$301.34
Extech Ph/Mv/Temperature Meter Kit: 0 Ph To 14 Ph, +/-0.02 Ph, 0.01 Ph Ph Resolution, Mv/Ph/Temp Model: OYSTER-15
Grainger
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$73.37
OAKTON WD-35634-05 Ecotestr Ph1 Waterproof Pocket Tester, 0 To 14 Ph
Globaltestsupply.com
1
$73.37
OAKTON WD-35634-05 Ecotestr Ph1 Waterproof Pocket Tester, 0 To 14 Ph
Globaltestsupply.com
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$84.35
$165.51
Water Quality Tester,Wall-Mounted Water Monitor,For PH, EC, TDS, Salt, S.G, CF, ORP, Temperature
toshomx
49% off
$84.35
$165.51
Water Quality Tester,Wall-Mounted Water Monitor,For PH, EC, TDS, Salt, S.G, CF, ORP, Temperature
toshomx
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$115.90
Hach Pocket Pro Ph Tester 9531000E
PoolZoom.com
$57.99
Hydrogen Water Tester 4 in 1 Ph ORP H2 Temperature Meter Accurate Digital Water Quality Test Kit For Drinking Water
Home Depot
Free shipping
$57.99
Hydrogen Water Tester 4 in 1 Ph ORP H2 Temperature Meter Accurate Digital Water Quality Test Kit For Drinking Water
Home Depot
$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
$1,116.90
OAKTON PH 450 Ph Meter Kit
Globaltestsupply.com
$1,116.90
OAKTON PH 450 Ph Meter Kit
Globaltestsupply.com
$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
$14.02
$16.49
Buy Ph Strips | Ph Test Strips | Enzymedica
Enzymedica
15
14% off
$14.02
$16.49
Buy Ph Strips | Ph Test Strips | Enzymedica
Enzymedica