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$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
Free shipping
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
$17.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout
Amazon.com
808
$17.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout
Amazon.com
808
$124.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
153
Free shipping
$124.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
153
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$195.00
Milwaukee MW802 - PRO 3-In-1 Ph/EC/TDS Combo Meter With ATC
TEquipment
54
$195.00
Milwaukee MW802 - PRO 3-In-1 Ph/EC/TDS Combo Meter With ATC
TEquipment
54
$143.80
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
385
$143.80
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
385
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$883.00
Oakton WD-35604-25 TDS 6+ Handheld TDS Meter Kit & NIST Traceable Calibration Report, 35604-25
TEquipment
$883.00
Oakton WD-35604-25 TDS 6+ Handheld TDS Meter Kit & NIST Traceable Calibration Report, 35604-25
TEquipment
$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
$9.99
Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
Free shipping
$9.99
Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
$164.98
Extech EC150 Conductivity/TDS/Temperature Meter, EC150, Protective Cap, 4X Button Cell Batteries - ( Min. Purchase Quantity Is 2 )
Global Industrial
$164.98
Extech EC150 Conductivity/TDS/Temperature Meter, EC150, Protective Cap, 4X Button Cell Batteries - ( Min. Purchase Quantity Is 2 )
Global Industrial
$235.98
Extech EC400 Exstik Conductivity/TDS/Salinity Meter - ( Min. Purchase Quantity Is 2 )
Global Industrial
385
$235.98
Extech EC400 Exstik Conductivity/TDS/Salinity Meter - ( Min. Purchase Quantity Is 2 )
Global Industrial
385
$166.99
Ohaus TDS Meter: 100 Mg/L TDS Range - Max, 0.1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-A
Grainger
$166.99
Ohaus TDS Meter: 100 Mg/L TDS Range - Max, 0.1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-A
Grainger
$176.60
$216.00
Thermo Scientific ELITEPCTS Ph, Conductivity, TDS, Salinity Pocket Tester
TEquipment
18% off
$176.60
$216.00
Thermo Scientific ELITEPCTS Ph, Conductivity, TDS, Salinity Pocket Tester
TEquipment
$316.00
Hach Pocket Pro+ Multi 1 Tester For Cond/TDS/Salinity With Replaceable Sensor 9532700
Core & Main
$316.00
Hach Pocket Pro+ Multi 1 Tester For Cond/TDS/Salinity With Replaceable Sensor 9532700
Core & Main
$292.65
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
430
$292.65
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
430
$169.54
Ohaus TDS Meter: 1,000 Mg/L TDS Range - Max, 1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-B
Grainger
$169.54
Ohaus TDS Meter: 1,000 Mg/L TDS Range - Max, 1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-B
Grainger
$130.56
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester
Amazon.com
928
Free shipping
$130.56
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester
Amazon.com
928
$295.00
Milwaukee MW806 - MAX 4-In-1 Ph/EC/TDS/Temp. Combo Meter W/ATC, 0.00-20.00 Ms/Cm, 0.00-10.00 Ppt (G/L)
TEquipment
$295.00
Milwaukee MW806 - MAX 4-In-1 Ph/EC/TDS/Temp. Combo Meter W/ATC, 0.00-20.00 Ms/Cm, 0.00-10.00 Ppt (G/L)
TEquipment
$88.65
Oakton TDS Meter: 10 Ppt TDS Range - Max, 0.01 Mg/L_0.1 Mg/L_1 Mg/L TDS Resolution, Digital Model: 3563408
Grainger
$88.65
Oakton TDS Meter: 10 Ppt TDS Range - Max, 0.01 Mg/L_0.1 Mg/L_1 Mg/L TDS Resolution, Digital Model: 3563408
Grainger
$14.89
2-Button Digital TDS Meter With Backlit LCD
Home Depot
Free shipping
$14.89
2-Button Digital TDS Meter With Backlit LCD
Home Depot
Free shipping
$923.90
Thermo Scientific STARA2220 - Orion Star A222 Conductivity/TDS/Salinity/Resistivity Portable Meter
TEquipment
18% off
$923.90
Thermo Scientific STARA2220 - Orion Star A222 Conductivity/TDS/Salinity/Resistivity Portable Meter
TEquipment
$14.95
$19.95
HM Digital TDS-EZ 0-9990 PPM Water Quality Tester
FiltersFast.com
7K+
25% off
$14.95
$19.95
HM Digital TDS-EZ 0-9990 PPM Water Quality Tester
FiltersFast.com
7K+
$170.00
TDS/PPM TRACEABLE - Test Equipment & Continuity Tester Supplies
Radwell.com
$170.00
TDS/PPM TRACEABLE - Test Equipment & Continuity Tester Supplies
Radwell.com
$197.61
$277.61
General Tools DCM22CT - Digital Conductivity TDS Meter
TEquipment
28% off
$197.61
$277.61
General Tools DCM22CT - Digital Conductivity TDS Meter
TEquipment
$14.81
HM Digital TDS-3, Handheld TDS Meter With Carrying Case
Selectum
11
$14.81
HM Digital TDS-3, Handheld TDS Meter With Carrying Case
Selectum
11
$56.96
$58.72
Everpure Digital Pocket TDS Meter EV650020
FiltersFast.com
$56.96
$58.72
Everpure Digital Pocket TDS Meter EV650020
FiltersFast.com
$1,340.88
$1,640.00
Thermo Scientific STARA2120 - Orion Star A212 Conductivity/TDS/Salinity/Resistivity Benchtop Meter With Stand
TEquipment
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$1,340.88
$1,640.00
Thermo Scientific STARA2120 - Orion Star A212 Conductivity/TDS/Salinity/Resistivity Benchtop Meter With Stand
TEquipment
$485.00
Hach Pocket Pro+ Multi 2 Tester For Ph/Cond/TDS/Salinity With Replaceable Sensor 9532800
Core & Main
$485.00
Hach Pocket Pro+ Multi 2 Tester For Ph/Cond/TDS/Salinity With Replaceable Sensor 9532800
Core & Main
$157.97
Extech Pocket Multiparameter Meter: Conductivity/Temp/Total Dissolved Solids, 0 Us/Cm To 1,999 Us/Cm Model: EC150
Grainger
142
$157.97
Extech Pocket Multiparameter Meter: Conductivity/Temp/Total Dissolved Solids, 0 Us/Cm To 1,999 Us/Cm Model: EC150
Grainger
142
$130.69
$181.89
Triplett WQ120 - Ph/Conductivity/TDS/Salinity Meter
TEquipment
3
28% off
$130.69
$181.89
Triplett WQ120 - Ph/Conductivity/TDS/Salinity Meter
TEquipment
3
$683.50
Oakton TDS 6+ Handheld TDS Meter With Probe | Cole-Parmer
Cole-Parmer
$683.50
Oakton TDS 6+ Handheld TDS Meter With Probe | Cole-Parmer
Cole-Parmer
$12.99
$35.18
Most Accurate So Far 4-In-1 Instant Read TDS Meter, Measures TDS, EC, & Temperature (C/F) , Digital Water Testing Kit For Tap, Well, Pool, Hydroponics
LightInTheBox
63% off
$12.99
$35.18
Most Accurate So Far 4-In-1 Instant Read TDS Meter, Measures TDS, EC, & Temperature (C/F) , Digital Water Testing Kit For Tap, Well, Pool, Hydroponics
LightInTheBox
$236.21
Oakton Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: 3563442
Grainger
$236.21
Oakton Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: 3563442
Grainger
$13.99
$26.74
TDS Digital Water Tester Water Test Pen Water Quality Analysis Meter Water Purity Check 0-9999 Ppm Measurement Hardness Tester
LightInTheBox
47% off
$13.99
$26.74
TDS Digital Water Tester Water Test Pen Water Quality Analysis Meter Water Purity Check 0-9999 Ppm Measurement Hardness Tester
LightInTheBox
$24.95
$49.00
2025 All-New 3 in 1 Tds Meter Digital Water Tester Blue
aueetty
Free shipping
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$24.95
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2025 All-New 3 in 1 Tds Meter Digital Water Tester Blue
aueetty
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Shop tds meter testing

Sponsored
About our ads
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
Free shipping
$15.99
Advanced Digital TDS Meter Water Quality Tester With Automatic Calibration, Temperature Button, And Leather Case
Home Depot
105
$17.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout
Amazon.com
808
$17.99
APEC TDS Meter Digital Water Quality TDS Test Kit Meter With Carrying Case, 0 To 1999 Ppm Measurement Range, 1 Ppm Resolution, +/- 2% Readout
Amazon.com
808
$124.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
153
Free shipping
$124.00
Extech EC400 Exstik Waterproof Conductivity, TDS, Salinity, And Temperature Meter
Amazon.com
153
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$195.00
Milwaukee MW802 - PRO 3-In-1 Ph/EC/TDS Combo Meter With ATC
TEquipment
54
$195.00
Milwaukee MW802 - PRO 3-In-1 Ph/EC/TDS Combo Meter With ATC
TEquipment
54
$143.80
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
385
$143.80
Extech Pocket Multiparameter Meter: Conductivity/Salinity/Temp/Total Dissolved Solids Model: EC400
Grainger
385
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$883.00
Oakton WD-35604-25 TDS 6+ Handheld TDS Meter Kit & NIST Traceable Calibration Report, 35604-25
TEquipment
$883.00
Oakton WD-35604-25 TDS 6+ Handheld TDS Meter Kit & NIST Traceable Calibration Report, 35604-25
TEquipment
$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
$9.99
Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
Free shipping
$9.99
Digital TDS Meter Water Quality Tester With Carrying Case
Home Depot
24
$164.98
Extech EC150 Conductivity/TDS/Temperature Meter, EC150, Protective Cap, 4X Button Cell Batteries - ( Min. Purchase Quantity Is 2 )
Global Industrial
$164.98
Extech EC150 Conductivity/TDS/Temperature Meter, EC150, Protective Cap, 4X Button Cell Batteries - ( Min. Purchase Quantity Is 2 )
Global Industrial
$235.98
Extech EC400 Exstik Conductivity/TDS/Salinity Meter - ( Min. Purchase Quantity Is 2 )
Global Industrial
385
$235.98
Extech EC400 Exstik Conductivity/TDS/Salinity Meter - ( Min. Purchase Quantity Is 2 )
Global Industrial
385
$166.99
Ohaus TDS Meter: 100 Mg/L TDS Range - Max, 0.1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-A
Grainger
$166.99
Ohaus TDS Meter: 100 Mg/L TDS Range - Max, 0.1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-A
Grainger
$176.60
$216.00
Thermo Scientific ELITEPCTS Ph, Conductivity, TDS, Salinity Pocket Tester
TEquipment
18% off
$176.60
$216.00
Thermo Scientific ELITEPCTS Ph, Conductivity, TDS, Salinity Pocket Tester
TEquipment
$316.00
Hach Pocket Pro+ Multi 1 Tester For Cond/TDS/Salinity With Replaceable Sensor 9532700
Core & Main
$316.00
Hach Pocket Pro+ Multi 1 Tester For Cond/TDS/Salinity With Replaceable Sensor 9532700
Core & Main
$292.65
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
430
$292.65
Extech Pocket Multiparameter Meter: Conductivity/Ph/Salinity/Temp/Total Dissolved Solids Model: EC500
Grainger
430
$169.54
Ohaus TDS Meter: 1,000 Mg/L TDS Range - Max, 1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-B
Grainger
$169.54
Ohaus TDS Meter: 1,000 Mg/L TDS Range - Max, 1 Mg/L TDS Resolution, +/-1.5% FS TDS Accuracy, Digital Model: ST20T-B
Grainger
$130.56
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester
Amazon.com
928
Free shipping
$130.56
APERA INSTRUMENTS AI316 Premium Series PC60 5-In-1 Waterproof Ph/EC (Conductivity) /TDS (Ppm) /Salinity (Ppt) /Temp. Multi-Parameter Pocket Tester
Amazon.com
928

  • Water TDS Meter - Monitor TDS Levels

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