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$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
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
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HM Digital PH-80 Ph Hydrotester
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HM Digital TDS-EZ, Water Quality Tester
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HM Digital TDS-EZ, Water Quality Tester
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Waterproof ORP Meter HM Digital ORP-200
Cannon Water Technology
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Waterproof ORP Meter HM Digital ORP-200
Cannon Water Technology
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HM Digital COM-100, Waterproof Professional EC/TDS Meter
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159
$55.20
HM Digital COM-100, Waterproof Professional EC/TDS Meter
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HM Digital COM-300, Waterproof Professional Ph/EC/TDS/Temp Meter
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HM Digital COM-300, Waterproof Professional Ph/EC/TDS/Temp Meter
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HM Digital HM-ZT-2, Basic Handheld TDS Meter
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HM Digital HM-ZT-2, Basic Handheld TDS Meter
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HM Digital COM-360, Waterproof Professional Ph/EC/TDS/Temp Meter
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$116.91
HM Digital COM-360, Waterproof Professional Ph/EC/TDS/Temp Meter
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$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
$139.93
HM Digital COM-300L, Waterproof Professional Series Ph/EC/TDS/Temp Meter
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$139.93
HM Digital COM-300L, Waterproof Professional Series Ph/EC/TDS/Temp Meter
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$71.43
HM Digital PH-200, Waterproof Professional Ph/Temp Meter
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HM Digital PH-200, Waterproof Professional Ph/Temp Meter
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$14.51
HM Digital TDS-3, Handheld TDS Meter With Carrying Case
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HM Digital TDS-3, Handheld TDS Meter With Carrying Case
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$108.85
HM Digital ORP-200, Waterproof Professional ORP/Temp Meter
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$108.85
HM Digital ORP-200, Waterproof Professional ORP/Temp Meter
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$71.43
HM Digital COM-100L, Waterproof Professional Series EC/TDS Meter
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$71.43
HM Digital COM-100L, Waterproof Professional Series EC/TDS Meter
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$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
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$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
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$14.81
HM Digital TDS-4, Pocket-Size TDS Meter
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HM Digital TDS-4, Pocket-Size TDS Meter
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$172.70
HM Digital HM-200, Portable Ph/EC/TDS/Temp Monitor
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$172.70
HM Digital HM-200, Portable Ph/EC/TDS/Temp Monitor
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$33.88
$51.50
HM Digital Waterproof EC/TDS/Temp Combo Meter
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$51.50
HM Digital Waterproof EC/TDS/Temp Combo Meter
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$172.70
HM Digital HM-100, Continuous Ph/EC/TDS/Temp Monitor
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$172.70
HM Digital HM-100, Continuous Ph/EC/TDS/Temp Monitor
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$22.20
HM Digital (TDS-3) Handheld Digital TDS Meter
Isopure Water
$22.20
HM Digital (TDS-3) Handheld Digital TDS Meter
Isopure Water
$23.99
HM Digital (TDS-EZ) TDS Meter-Monitor For "Total Dissolved Solids"
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HM Digital (TDS-EZ) TDS Meter-Monitor For "Total Dissolved Solids"
Isopure Water
$11.33
HM Digital TDS-4TM TDS Meter, Water Quality Purity Tester, 0-9990 Ppm. HM Digital. Moisture & Ph Meters. 891144000779.
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$11.33
HM Digital TDS-4TM TDS Meter, Water Quality Purity Tester, 0-9990 Ppm. HM Digital. Moisture & Ph Meters. 891144000779.
eBay
$34.89
$45.36
HM Digital COM-100 Waterproof Combo Meter For EC TDS And Temperature
Defazza
23% off
$34.89
$45.36
HM Digital COM-100 Waterproof Combo Meter For EC TDS And Temperature
Defazza
$35.89
Hm Digital Tds3 Tds-3 Pocket Tds Meter Water Tester Meter With Leather
eBay
$35.89
Hm Digital Tds3 Tds-3 Pocket Tds Meter Water Tester Meter With Leather
eBay
$19.99
HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 Ppm Measurement Range, Blue. HM Digital. Blue. Moisture & Ph Meters. 712641079917.
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HM Digital TDS-EZ Water Quality TDS Tester, 0-9990 Ppm Measurement Range, Blue. HM Digital. Blue. Moisture & Ph Meters. 712641079917.
eBay
$99.81
HM Digital COM-300, Professional Waterproof PH / TDS / EC / Temp Meter
PrimeLabMed
$99.81
HM Digital COM-300, Professional Waterproof PH / TDS / EC / Temp Meter
PrimeLabMed
$99.81
HM Digital COM-360, Professional Water Resistant PH / TDS / EC Meter
PrimeLabMed
$99.81
HM Digital COM-360, Professional Water Resistant PH / TDS / EC Meter
PrimeLabMed
$39.99
Hm Digital Ph-80 Handheld Hydro Tester Ph And Temperature Tester
Walmart
2
$39.99
Hm Digital Ph-80 Handheld Hydro Tester Ph And Temperature Tester
Walmart
$75.99
Hm Digital Hmdcom100 Waterproof Ec/Tds And Amp Temperature Combo Meter
Walmart
Free shipping
$75.99
Hm Digital Hmdcom100 Waterproof Ec/Tds And Amp Temperature Combo Meter
Walmart
$58.79
Hm Digital Dm-2 in And Out Digital Display Tds Tester | Inline Tds Meter |
WaterAnywhere CJ US
4
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$58.79
Hm Digital Dm-2 in And Out Digital Display Tds Tester | Inline Tds Meter |
WaterAnywhere CJ US
$45.88
Hm Digital Tds Ez Ppm Meter, Home Drinking Tap Water Quality Purity Test/Tester
Everymarket INC
$45.88
Hm Digital Tds Ez Ppm Meter, Home Drinking Tap Water Quality Purity Test/Tester
Everymarket INC
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Amazon.ca
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8 Best pH Meters In 2025 (Ranked By Quality)
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Shop hm digital water tester

Sponsored
About our ads
$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
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$14.84
HM Digital TDS-EZ, Water Quality Tester
Selectum
7K+
$14.84
HM Digital TDS-EZ, Water Quality Tester
Selectum
$77.00
Waterproof ORP Meter HM Digital ORP-200
Cannon Water Technology
$77.00
Waterproof ORP Meter HM Digital ORP-200
Cannon Water Technology
$55.20
HM Digital COM-100, Waterproof Professional EC/TDS Meter
Selectum
159
$55.20
HM Digital COM-100, Waterproof Professional EC/TDS Meter
Selectum
$116.91
HM Digital COM-300, Waterproof Professional Ph/EC/TDS/Temp Meter
Selectum
$116.91
HM Digital COM-300, Waterproof Professional Ph/EC/TDS/Temp Meter
Selectum
$12.64
HM Digital HM-ZT-2, Basic Handheld TDS Meter
Selectum
$12.64
HM Digital HM-ZT-2, Basic Handheld TDS Meter
Selectum
$116.91
HM Digital COM-360, Waterproof Professional Ph/EC/TDS/Temp Meter
Selectum
$116.91
HM Digital COM-360, Waterproof Professional Ph/EC/TDS/Temp Meter
Selectum
$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
$139.93
HM Digital COM-300L, Waterproof Professional Series Ph/EC/TDS/Temp Meter
Selectum
$139.93
HM Digital COM-300L, Waterproof Professional Series Ph/EC/TDS/Temp Meter
Selectum
$71.43
HM Digital PH-200, Waterproof Professional Ph/Temp Meter
Selectum
374
$71.43
HM Digital PH-200, Waterproof Professional Ph/Temp Meter
Selectum
$14.51
HM Digital TDS-3, Handheld TDS Meter With Carrying Case
Selectum
11
$14.51
HM Digital TDS-3, Handheld TDS Meter With Carrying Case
Selectum
$108.85
HM Digital ORP-200, Waterproof Professional ORP/Temp Meter
Selectum
1
$108.85
HM Digital ORP-200, Waterproof Professional ORP/Temp Meter
Selectum
$71.43
HM Digital COM-100L, Waterproof Professional Series EC/TDS Meter
Selectum
$71.43
HM Digital COM-100L, Waterproof Professional Series EC/TDS Meter
Selectum
$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
164
$18.40
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
$14.81
HM Digital TDS-4, Pocket-Size TDS Meter
Selectum
1K+
$14.81
HM Digital TDS-4, Pocket-Size TDS Meter
Selectum
$172.70
HM Digital HM-200, Portable Ph/EC/TDS/Temp Monitor
Selectum
$172.70
HM Digital HM-200, Portable Ph/EC/TDS/Temp Monitor
Selectum