Shop Real-Time pH and TDS Sensor

Sponsored
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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
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
Free shipping
$375.00
Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
Amazon.com
740
$224.95
$281.19
Hardness, Iron, Ph, Chlorine, & TDS Field Analysis Water Test Kit
US Water Systems
20% off
$224.95
$281.19
Hardness, Iron, Ph, Chlorine, & TDS Field Analysis Water Test Kit
US Water Systems
$130.62
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
992
Free shipping
$130.62
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
Amazon.com
992
$13.29
$15.99
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
21K+
16% off
$13.29
$15.99
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
21K+
$124.98
Oakton WD-35634-37 Ph/Conductivity/TDS/Salinity Sensor For Oakton Waterproof Pctstestr Series 50
Amazon.com
Free shipping
$124.98
Oakton WD-35634-37 Ph/Conductivity/TDS/Salinity Sensor For Oakton Waterproof Pctstestr Series 50
Amazon.com
Free shipping
$189.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
30
Free shipping
$189.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
30
$208.05
OAKTON WD-35425-50 Replacement Ph / Conductivity / TDS Sensor Module
Globaltestsupply.com
$208.05
OAKTON WD-35425-50 Replacement Ph / Conductivity / TDS Sensor Module
Globaltestsupply.com
$49.95
HM Digital DM-1 TDS Monitor - 1/4" Inlet / Outlet
US Water Systems
$49.95
HM Digital DM-1 TDS Monitor - 1/4" Inlet / Outlet
US Water Systems
$1,119.75
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
26
Free shipping
24% off
$1,119.75
Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
Amazon.com
26
$215.00
Hanna Instruments HI 98130 Waterproof Ph/Conductivity/TDS Tester With ATC, High Range
Amazon.com
58
Free shipping
$215.00
Hanna Instruments HI 98130 Waterproof Ph/Conductivity/TDS Tester With ATC, High Range
Amazon.com
58
$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
3
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
3
$134.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
135
Free shipping
$134.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
135
$9.88
Yewhick Digital Ph And TDS Meter Combo, High Accuracy 0.01 Water Quality Tester And 3-In-1 TDS And EC Meter, PPM And Μs Meter For Water, Practical
Amazon.com
$9.88
Yewhick Digital Ph And TDS Meter Combo, High Accuracy 0.01 Water Quality Tester And 3-In-1 TDS And EC Meter, PPM And Μs Meter For Water, Practical
Amazon.com
$21.84
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
59
$21.84
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
59
$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
29
$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
29
$59.00
AERO-GRO Digital 5-In-1 Meter: 5 Functions: Ph, TDS, EC, Salinity%, Salinity Ppm, And Temp, IP67 Waterproof, Pen-Type Tester For Hydroponics, Water,
Amazon.com
193
Free shipping
$59.00
AERO-GRO Digital 5-In-1 Meter: 5 Functions: Ph, TDS, EC, Salinity%, Salinity Ppm, And Temp, IP67 Waterproof, Pen-Type Tester For Hydroponics, Water,
Amazon.com
193
$4.99
4 in 1 Digital Water Quality Tester - TDS/EC/Temperature(°C/°F)TDS Meter | 0-9999 Ppm | Accurate And Professional For Drinking Water, Hydroponics,
Amazon.com
31
$4.99
4 in 1 Digital Water Quality Tester - TDS/EC/Temperature(°C/°F)TDS Meter | 0-9999 Ppm | Accurate And Professional For Drinking Water, Hydroponics,
Amazon.com
31
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
393
$18.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout Accuracy
Amazon.com
393
$39.99
PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
Amazon.com
9
Free shipping
$39.99
PH Meter & TDS Meter Digital Water Tester 5 in 1 Salinity Tester PH Temp EC And TDS Meter,PH Meter For Water With LCD Backlit,Water Testing Kits For
Amazon.com
9
$43.99
$46.99
PH Meter & TDS Meter 5 in 1 Water Tester Ph/TDS/EC/Salt/Temp Meter,PH Meter For Water With LCD Backlit,Ph Tester Digital For Drinking Water.
Amazon.com
3
Free shipping
$43.99
$46.99
PH Meter & TDS Meter 5 in 1 Water Tester Ph/TDS/EC/Salt/Temp Meter,PH Meter For Water With LCD Backlit,Ph Tester Digital For Drinking Water.
Amazon.com
3
$169.98
HM Digital HM-100, Continuous PH/EC/TDS/Temp Monitor
Amazon.com
1
Free shipping
$169.98
HM Digital HM-100, Continuous PH/EC/TDS/Temp Monitor
Amazon.com
1
$80.92
RCYAGO PH Meter, Digital 7 in 1 PH/TDS/EC/ORP/S.G/Salinity/Temp Meter With ATC, 0.01 Resolution High Accuracy PH Tester For Drinking Water,
Amazon.com
Free shipping
$80.92
RCYAGO PH Meter, Digital 7 in 1 PH/TDS/EC/ORP/S.G/Salinity/Temp Meter With ATC, 0.01 Resolution High Accuracy PH Tester For Drinking Water,
Amazon.com
Free shipping
$23.95
UIUZMAR Digital Ph Meter Ph TDS EC Meter For Hydroponic Solution Ph And EC Meter With LCD Display TDS Water Tester Ph PPM Meter For DWC Setup
Amazon.com
151
$23.95
UIUZMAR Digital Ph Meter Ph TDS EC Meter For Hydroponic Solution Ph And EC Meter With LCD Display TDS Water Tester Ph PPM Meter For DWC Setup
Amazon.com
151
$30.78
4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester Test Tool
www.madhornets.com
$30.78
4In1 PH/TDS/EC/Temperature Meter Digital Water Quality Monitor Tester Test Tool
www.madhornets.com
$24.99
GISNPA 5-In-1 Salt Water Pool Tester, Ph/TDS/EC/Salinity/Temp Meter, 0.01 Resolution High Accuracy Water Tester For Drinking Water, Hydroponics,
Amazon.com
88
$24.99
GISNPA 5-In-1 Salt Water Pool Tester, Ph/TDS/EC/Salinity/Temp Meter, 0.01 Resolution High Accuracy Water Tester For Drinking Water, Hydroponics,
Amazon.com
88
$14.99
$17.99
KETOTEK Digital Ph & TDS Meters Water Quality Test Kit, Ph Pen Tester TDS PPM Meter 2 in 1 Kit With 016.00Ph And 09999Ppm Measure Range For
Amazon.com
810
16% off
$14.99
$17.99
KETOTEK Digital Ph & TDS Meters Water Quality Test Kit, Ph Pen Tester TDS PPM Meter 2 in 1 Kit With 016.00Ph And 09999Ppm Measure Range For
Amazon.com
810
$20.94
Digital Ph And Tds Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter
eBay
$20.94
Digital Ph And Tds Meter Kits, 0.01Ph High Accuracy Pen Type Ph Meter
eBay
$1,844.00
Myron L Ultrameter III With TDS,Conductivity,Ph,ORP/Free Chlorine,Alkalynity,Hardness,Temp (Meter Only) PS9
Cannon Water Technology
$1,844.00
Myron L Ultrameter III With TDS,Conductivity,Ph,ORP/Free Chlorine,Alkalynity,Hardness,Temp (Meter Only) PS9
Cannon Water Technology
$74.95
COM-100 HM Digital EC TDS & Temperature Waterproof Meter
US Water Systems
$74.95
COM-100 HM Digital EC TDS & Temperature Waterproof Meter
US Water Systems
$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
$238.45
HM Digital HM-500, Hydromaster Continuous Ph/EC/TDS/ Temperature Monitor
Selectum
$238.45
HM Digital HM-500, Hydromaster Continuous Ph/EC/TDS/ Temperature Monitor
Selectum
$35.99
$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
307
Free shipping
10% off
$35.99
$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
307
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
Free shipping
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
Free shipping
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$28.99
Hydrogen Water Tester,Digital ORP Meter For Drinking Water,6-In-1 Ph TDS Tester,Ph ORP TDS EC H2 And Temperature Meter For Drinking Water, Hydroponics
Amazon.com
$28.99
Hydrogen Water Tester,Digital ORP Meter For Drinking Water,6-In-1 Ph TDS Tester,Ph ORP TDS EC H2 And Temperature Meter For Drinking Water, Hydroponics
Amazon.com
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    Shop Real-Time pH and TDS Sensor

    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
    $375.00
    Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
    Amazon.com
    740
    Free shipping
    $375.00
    Bluelab Guardian Monitor Wi-Fi For Real-Time Ph, Temperature, And Conductivity (TDS) Measurements In Water With Calibration, 3 in 1 Digital Nutrient
    Amazon.com
    740
    $224.95
    $281.19
    Hardness, Iron, Ph, Chlorine, & TDS Field Analysis Water Test Kit
    US Water Systems
    20% off
    $224.95
    $281.19
    Hardness, Iron, Ph, Chlorine, & TDS Field Analysis Water Test Kit
    US Water Systems
    $130.62
    APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
    Amazon.com
    992
    Free shipping
    $130.62
    APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester Kit
    Amazon.com
    992
    $13.29
    $15.99
    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
    21K+
    16% off
    $13.29
    $15.99
    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
    21K+
    $124.98
    Oakton WD-35634-37 Ph/Conductivity/TDS/Salinity Sensor For Oakton Waterproof Pctstestr Series 50
    Amazon.com
    Free shipping
    $124.98
    Oakton WD-35634-37 Ph/Conductivity/TDS/Salinity Sensor For Oakton Waterproof Pctstestr Series 50
    Amazon.com
    Free shipping
    $189.99
    Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
    Amazon.com
    30
    Free shipping
    $189.99
    Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
    Amazon.com
    30
    $208.05
    OAKTON WD-35425-50 Replacement Ph / Conductivity / TDS Sensor Module
    Globaltestsupply.com
    $208.05
    OAKTON WD-35425-50 Replacement Ph / Conductivity / TDS Sensor Module
    Globaltestsupply.com
    $49.95
    HM Digital DM-1 TDS Monitor - 1/4" Inlet / Outlet
    US Water Systems
    $49.95
    HM Digital DM-1 TDS Monitor - 1/4" Inlet / Outlet
    US Water Systems
    $1,119.75
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    26
    Free shipping
    24% off
    $1,119.75
    Myron L 6PIIFCE Conductivity, Resistivity, TDS, Ph, ORP/Free Chlorine, Temperature Meter
    Amazon.com
    26
    $215.00
    Hanna Instruments HI 98130 Waterproof Ph/Conductivity/TDS Tester With ATC, High Range
    Amazon.com
    58
    Free shipping
    $215.00
    Hanna Instruments HI 98130 Waterproof Ph/Conductivity/TDS Tester With ATC, High Range
    Amazon.com
    58
    $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
    3
    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
    3
    $134.00
    Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
    Amazon.com
    135
    Free shipping
    $134.00
    Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
    Amazon.com
    135
    $9.88
    Yewhick Digital Ph And TDS Meter Combo, High Accuracy 0.01 Water Quality Tester And 3-In-1 TDS And EC Meter, PPM And Μs Meter For Water, Practical
    Amazon.com
    $9.88
    Yewhick Digital Ph And TDS Meter Combo, High Accuracy 0.01 Water Quality Tester And 3-In-1 TDS And EC Meter, PPM And Μs Meter For Water, Practical
    Amazon.com
    $21.84
    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
    59
    $21.84
    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
    59
    $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
    29
    $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
    29
    $59.00
    AERO-GRO Digital 5-In-1 Meter: 5 Functions: Ph, TDS, EC, Salinity%, Salinity Ppm, And Temp, IP67 Waterproof, Pen-Type Tester For Hydroponics, Water,
    Amazon.com
    193
    Free shipping
    $59.00
    AERO-GRO Digital 5-In-1 Meter: 5 Functions: Ph, TDS, EC, Salinity%, Salinity Ppm, And Temp, IP67 Waterproof, Pen-Type Tester For Hydroponics, Water,
    Amazon.com
    193
    $4.99
    4 in 1 Digital Water Quality Tester - TDS/EC/Temperature(°C/°F)TDS Meter | 0-9999 Ppm | Accurate And Professional For Drinking Water, Hydroponics,
    Amazon.com
    31
    $4.99
    4 in 1 Digital Water Quality Tester - TDS/EC/Temperature(°C/°F)TDS Meter | 0-9999 Ppm | Accurate And Professional For Drinking Water, Hydroponics,
    Amazon.com
    31