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$19.99
$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
1K+
37% off
$19.99
$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
1K+
$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
$74.90
$99.99
General Tools DPH7011 Digital PH Meter With RS-232 Output
Amazon.com
Free shipping
25% off
$74.90
$99.99
General Tools DPH7011 Digital PH Meter With RS-232 Output
Amazon.com
Free shipping
$124.14
HACH 9531000E Pocket Pro Ph And Temperature Tester
Amazon.com
1
Free shipping
$124.14
HACH 9531000E Pocket Pro Ph And Temperature Tester
Amazon.com
1
$16.99
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,
Amazon.com
20K+
$16.99
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,
Amazon.com
20K+
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$42.00
HM Digital PH-80 Ph Hydrotester
Cannon Water Technology
$34.14
$42.69
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
Amazon.com
20% off
$34.14
$42.69
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
Amazon.com
$49.99
Onilab Digital Ph Meter,0.01Ph High Accuracy Pen Type Ph Tester Kit,Waterproof, Auto Temperature Compensation, Easy Calibration,Replaceable Probe
Amazon.com
Free shipping
$49.99
Onilab Digital Ph Meter,0.01Ph High Accuracy Pen Type Ph Tester Kit,Waterproof, Auto Temperature Compensation, Easy Calibration,Replaceable Probe
Amazon.com
Free shipping
$32.99
$35.99
Smart Ph Meter For Food, GIDIGI Digital Food Ph Tester, Accurate Canning Ph Test Kits With ATC, Professional Fermenting Ph Test Pen, Spear Ph Probe
Amazon.com
$32.99
$35.99
Smart Ph Meter For Food, GIDIGI Digital Food Ph Tester, Accurate Canning Ph Test Kits With ATC, Professional Fermenting Ph Test Pen, Spear Ph Probe
Amazon.com
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$70.00
Waterproof Ph Meter PH-200
Cannon Water Technology
$21.69
$22.99
CIZTADA 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
Amazon.com
$21.69
$22.99
CIZTADA 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
Amazon.com
$239.00
Apera Instruments PH60-HT Handheld Ph Meter Tester Kit With Labsen 865 Ph/Temp. Electrode For Lab-Grade Ph Measurement In High Temperature And/Or
Amazon.com
Free shipping
$239.00
Apera Instruments PH60-HT Handheld Ph Meter Tester Kit With Labsen 865 Ph/Temp. Electrode For Lab-Grade Ph Measurement In High Temperature And/Or
Amazon.com
Free shipping
$22.99
Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
Amazon.com
$22.99
Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
Amazon.com
$46.99
Ph Meter For Water 7 in 1 PH/TDS/EC/Salt/S.G/ORP/Temp Meter,Ph Tester Digital Backlit Waterproof LCD,TDS Meter EC Meter PPM Meter Suitable For Pools,
Amazon.com
26
Free shipping
$46.99
Ph Meter For Water 7 in 1 PH/TDS/EC/Salt/S.G/ORP/Temp Meter,Ph Tester Digital Backlit Waterproof LCD,TDS Meter EC Meter PPM Meter Suitable For Pools,
Amazon.com
26
$24.99
CIZTADA Hydrogen Water Tester Ph ORP Meter For Drinking Water, 4 in 1 Ph H2 ORP Meter For Hydrogen Water Bottle/Machine, Digital Ph PPM ORP Temp
Amazon.com
$24.99
CIZTADA Hydrogen Water Tester Ph ORP Meter For Drinking Water, 4 in 1 Ph H2 ORP Meter For Hydrogen Water Bottle/Machine, Digital Ph PPM ORP Temp
Amazon.com
$32.98
YAMRON 4-In-1 Soil Moisture Meter, Digital Plant Temperature/Soil Moisture Test & PH Meter/Sunlight Intensity, Backlight LCD Display For Gardening,
Amazon.com
$32.98
YAMRON 4-In-1 Soil Moisture Meter, Digital Plant Temperature/Soil Moisture Test & PH Meter/Sunlight Intensity, Backlight LCD Display For Gardening,
Amazon.com
$44.99
Digital Soil Ph Meter - One
Gurney's
$44.99
Digital Soil Ph Meter - One
Gurney's
$39.99
Pious PH Tester Digital, 5 in 1 PH Meter For Water/Salinity Meter/Tds/Ec/Thermometer, Pool Salt Tester With Constant Temperature Compensation,
Amazon.com
Free shipping
$39.99
Pious PH Tester Digital, 5 in 1 PH Meter For Water/Salinity Meter/Tds/Ec/Thermometer, Pool Salt Tester With Constant Temperature Compensation,
Amazon.com
Free shipping
$21.42
VIVOSUN Digital PH Meter, 3-In-1TDS EC And Temperature Meter, Plant Soil Moisturetester Combo For Home, Garden And Hydroponics
Amazon.com
742
$21.42
VIVOSUN Digital PH Meter, 3-In-1TDS EC And Temperature Meter, Plant Soil Moisturetester Combo For Home, Garden And Hydroponics
Amazon.com
742
$25.97
Pool Salt Tester, Digital Salt Water Pool Tester & Ph Tester, Salt Tester For Saltwater Pool, Digital Salinity Tester For Water, 5 in 1 Salinity Ph
Amazon.com
$25.97
Pool Salt Tester, Digital Salt Water Pool Tester & Ph Tester, Salt Tester For Saltwater Pool, Digital Salinity Tester For Water, 5 in 1 Salinity Ph
Amazon.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$443.11
OAKTON WD-35613-50 Ph 5+ Handheld Meter With ATC, Order Ph Probe Separately
Globaltestsupply.com
$494.21
OAKTON PH 6+ Ph/Ion Meter
Globaltestsupply.com
$494.21
OAKTON PH 6+ Ph/Ion Meter
Globaltestsupply.com
$67.16
Digital PH Tester Meter With Temperature Compensation From Rapids Wholesale
Rapids Wholesale Equipment
30-day returns (most items)
$67.16
Digital PH Tester Meter With Temperature Compensation From Rapids Wholesale
Rapids Wholesale Equipment
30-day returns
$54.78
PH Meter Thermometer Pen For Food Fruit Meat Soil Lab Digital Acidity PH Tester
vipih.com
$54.78
PH Meter Thermometer Pen For Food Fruit Meat Soil Lab Digital Acidity PH Tester
vipih.com
$1,575.34
OAKTON PD 450 Ph/RDO Meter
Globaltestsupply.com
$1,575.34
OAKTON PD 450 Ph/RDO Meter
Globaltestsupply.com
$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
374
$49.99
Tilswall Digital Ph Meter With ATC For Water, Pool, Aquarium, Hydroponics
Tilswall US
$49.99
Tilswall Digital Ph Meter With ATC For Water, Pool, Aquarium, Hydroponics
Tilswall US
$244.93
PCE Instruments PCE-PH 26F, Simple Digital Ph Meter For The Measurement Of Viscous Liquids - 1 ... 1
Selectum
30-day returns (most items)
$244.93
PCE Instruments PCE-PH 26F, Simple Digital Ph Meter For The Measurement Of Viscous Liquids - 1 ... 1
Selectum
30-day returns
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
52% off
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
$99.95
$112.45
PH-200 HM Digital Professional Grade Handheld Ph Meter
US Water Systems
60-day returns (most items)
11% off
$99.95
$112.45
PH-200 HM Digital Professional Grade Handheld Ph Meter
US Water Systems
60-day returns
$19.02
$24.38
Ph/Tds/Ec/Salinity/Temperature 5 in 1 Digital Water Quality Meter
eBay
Free shipping
21% off
$19.02
$24.38
Ph/Tds/Ec/Salinity/Temperature 5 in 1 Digital Water Quality Meter
eBay
Free shipping
$811.90
Myron L 724II-35BL, 720 Series II Digital Ph Monitor W/ 3-1/2 Digit Backlit LCD
Selectum
$811.90
Myron L 724II-35BL, 720 Series II Digital Ph Monitor W/ 3-1/2 Digit Backlit LCD
Selectum
$32.99
$42.99
Tilswall 3-In-1 Soil Meter Digital Plant Temperature/Soil/PH Meter, 1Pcs
Tilswall US
23% off
$32.99
$42.99
Tilswall 3-In-1 Soil Meter Digital Plant Temperature/Soil/PH Meter, 1Pcs
Tilswall US
$309.99
Groline Waterproof Portable Ph/EC/TDS Meter (HI9814)
LED Lights Depot
$309.99
Groline Waterproof Portable Ph/EC/TDS Meter (HI9814)
LED Lights Depot
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
30-day returns (most items)
$49.99
$54.99
Tilswall Digital Water Tester 5-In-1 PH Meter & TDS Meter
Tilswall US
30-day returns
$22.39
$27.99
Vivosun Digital Ph Meter, 3-In-1 Tds/Ec/Temperature Meter For Home
eBay
Free shipping
20% off
$22.39
$27.99
Vivosun Digital Ph Meter, 3-In-1 Tds/Ec/Temperature Meter For Home
eBay
Free shipping
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    Shop digital ph reader

    Sponsored
    About our ads
    $19.99
    $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
    1K+
    37% off
    $19.99
    $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
    1K+
    $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
    $74.90
    $99.99
    General Tools DPH7011 Digital PH Meter With RS-232 Output
    Amazon.com
    Free shipping
    25% off
    $74.90
    $99.99
    General Tools DPH7011 Digital PH Meter With RS-232 Output
    Amazon.com
    Free shipping
    $124.14
    HACH 9531000E Pocket Pro Ph And Temperature Tester
    Amazon.com
    1
    Free shipping
    $124.14
    HACH 9531000E Pocket Pro Ph And Temperature Tester
    Amazon.com
    1
    $16.99
    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,
    Amazon.com
    20K+
    $16.99
    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,
    Amazon.com
    20K+
    $42.00
    HM Digital PH-80 Ph Hydrotester
    Cannon Water Technology
    $42.00
    HM Digital PH-80 Ph Hydrotester
    Cannon Water Technology
    $34.14
    $42.69
    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
    Amazon.com
    20% off
    $34.14
    $42.69
    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
    Amazon.com
    $49.99
    Onilab Digital Ph Meter,0.01Ph High Accuracy Pen Type Ph Tester Kit,Waterproof, Auto Temperature Compensation, Easy Calibration,Replaceable Probe
    Amazon.com
    Free shipping
    $49.99
    Onilab Digital Ph Meter,0.01Ph High Accuracy Pen Type Ph Tester Kit,Waterproof, Auto Temperature Compensation, Easy Calibration,Replaceable Probe
    Amazon.com
    Free shipping
    $32.99
    $35.99
    Smart Ph Meter For Food, GIDIGI Digital Food Ph Tester, Accurate Canning Ph Test Kits With ATC, Professional Fermenting Ph Test Pen, Spear Ph Probe
    Amazon.com
    $32.99
    $35.99
    Smart Ph Meter For Food, GIDIGI Digital Food Ph Tester, Accurate Canning Ph Test Kits With ATC, Professional Fermenting Ph Test Pen, Spear Ph Probe
    Amazon.com
    $70.00
    Waterproof Ph Meter PH-200
    Cannon Water Technology
    $70.00
    Waterproof Ph Meter PH-200
    Cannon Water Technology
    $21.69
    $22.99
    CIZTADA 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
    Amazon.com
    $21.69
    $22.99
    CIZTADA 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
    Amazon.com
    $239.00
    Apera Instruments PH60-HT Handheld Ph Meter Tester Kit With Labsen 865 Ph/Temp. Electrode For Lab-Grade Ph Measurement In High Temperature And/Or
    Amazon.com
    Free shipping
    $239.00
    Apera Instruments PH60-HT Handheld Ph Meter Tester Kit With Labsen 865 Ph/Temp. Electrode For Lab-Grade Ph Measurement In High Temperature And/Or
    Amazon.com
    Free shipping
    $22.99
    Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
    Amazon.com
    $22.99
    Ph Tester,Digital Ph Meter For Water,New Version TDS Meter For Drinking Water With Backlit Simultaneously Display 4 in 1 TDS Ph EC Meter For Water
    Amazon.com
    $46.99
    Ph Meter For Water 7 in 1 PH/TDS/EC/Salt/S.G/ORP/Temp Meter,Ph Tester Digital Backlit Waterproof LCD,TDS Meter EC Meter PPM Meter Suitable For Pools,
    Amazon.com
    26
    Free shipping
    $46.99
    Ph Meter For Water 7 in 1 PH/TDS/EC/Salt/S.G/ORP/Temp Meter,Ph Tester Digital Backlit Waterproof LCD,TDS Meter EC Meter PPM Meter Suitable For Pools,
    Amazon.com
    26
    $24.99
    CIZTADA Hydrogen Water Tester Ph ORP Meter For Drinking Water, 4 in 1 Ph H2 ORP Meter For Hydrogen Water Bottle/Machine, Digital Ph PPM ORP Temp
    Amazon.com
    $24.99
    CIZTADA Hydrogen Water Tester Ph ORP Meter For Drinking Water, 4 in 1 Ph H2 ORP Meter For Hydrogen Water Bottle/Machine, Digital Ph PPM ORP Temp
    Amazon.com
    $32.98
    YAMRON 4-In-1 Soil Moisture Meter, Digital Plant Temperature/Soil Moisture Test & PH Meter/Sunlight Intensity, Backlight LCD Display For Gardening,
    Amazon.com
    $32.98
    YAMRON 4-In-1 Soil Moisture Meter, Digital Plant Temperature/Soil Moisture Test & PH Meter/Sunlight Intensity, Backlight LCD Display For Gardening,
    Amazon.com
    $44.99
    Digital Soil Ph Meter - One
    Gurney's
    $44.99
    Digital Soil Ph Meter - One
    Gurney's
    $39.99
    Pious PH Tester Digital, 5 in 1 PH Meter For Water/Salinity Meter/Tds/Ec/Thermometer, Pool Salt Tester With Constant Temperature Compensation,
    Amazon.com
    Free shipping
    $39.99
    Pious PH Tester Digital, 5 in 1 PH Meter For Water/Salinity Meter/Tds/Ec/Thermometer, Pool Salt Tester With Constant Temperature Compensation,
    Amazon.com
    Free shipping