Shop What Do TDS Meters Test

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$29.95
HM Digital QC-1 Quick Check TDS Monitor
US Water Systems
$29.95
HM Digital QC-1 Quick Check TDS Monitor
US Water Systems
$29.95
$54.51
Advanced TDS & EC Meter For Reverse Osmosis Systems
US Water Systems
45% off
$29.95
$54.51
Advanced TDS & EC Meter For Reverse Osmosis Systems
US Water Systems
$9.97
TDS Water Tester, 4 in 1 TDS Meter Digital Water Tester, Accurate And Reliable Digital TDS EC & Temp(°C,°F) Meter, 0-9990PPM Water Quality Tester
Amazon.com
$9.97
TDS Water Tester, 4 in 1 TDS Meter Digital Water Tester, Accurate And Reliable Digital TDS EC & Temp(°C,°F) Meter, 0-9990PPM Water Quality Tester
Amazon.com
$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
$276.35
Combo Ph/Conductivity/TDS Tester (High Range)
Certified MTP
$276.35
Combo Ph/Conductivity/TDS Tester (High Range)
Certified MTP
$254.78
Dist 6 EC/TDS/Temp (0.00 To 20.00 Ms/Cm, 0.00 To 10.00)
Certified MTP
$254.78
Dist 6 EC/TDS/Temp (0.00 To 20.00 Ms/Cm, 0.00 To 10.00)
Certified MTP
$170.00
Horiba Laquatwin Conductivity (EC), Salt, TDS Meter
AgTec
$170.00
Horiba Laquatwin Conductivity (EC), Salt, TDS Meter
AgTec
$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
$32.99
Pool Salt Tester - Multifunctional 5 in 1 Salinity, PH, TDS, EC, And Temperature Meter, Pool Salinity Testing Kit, Digital Salinity Tester For
Amazon.com
208
$32.99
Pool Salt Tester - Multifunctional 5 in 1 Salinity, PH, TDS, EC, And Temperature Meter, Pool Salinity Testing Kit, Digital Salinity Tester For
Amazon.com
$2,190.00
Hach HQ4200 Portable Multi-Meter Ph/TDS/DO/ORP/ISE 2 Inputs With Out Electrodes LEV015.53.4200A
Core & Main
$2,190.00
Hach HQ4200 Portable Multi-Meter Ph/TDS/DO/ORP/ISE 2 Inputs With Out Electrodes LEV015.53.4200A
Core & Main
$603.95
$676.96
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With All Three Probes
MSE Supplies
10% off
$603.95
$676.96
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With All Three Probes
MSE Supplies
$89.95
$93.55
Pocket Conductivity/TDS Meter
MSE Supplies
$89.95
$93.55
Pocket Conductivity/TDS Meter
MSE Supplies
$3,059.98
Hanna Multiparameter Ph/EC/TDS/Salinity/DO/Pressure/ Temp Meter
Certified MTP
$3,059.98
Hanna Multiparameter Ph/EC/TDS/Salinity/DO/Pressure/ Temp Meter
Certified MTP
$72.00
Sterisil Total Dissolved Solids (TDS) Handheld Meter TDS-3
Sterilizer Autoclave Solutions
$72.00
Sterisil Total Dissolved Solids (TDS) Handheld Meter TDS-3
Sterilizer Autoclave Solutions
$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
$76.95
$86.96
Water-I.D Electronic TDS-Meter 0-1999 Ppm
MSE Supplies
11% off
$76.95
$86.96
Water-I.D Electronic TDS-Meter 0-1999 Ppm
MSE Supplies
$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
$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
$70.11
$339.00
3 in 1 Salt Tester Meter TDS Temp Water Quality Tester PPM Meter Pen Type Salinometer Monitor Digital Water Tester, Measurement Checker For Pond
Temu US
79% off
$70.11
$339.00
3 in 1 Salt Tester Meter TDS Temp Water Quality Tester PPM Meter Pen Type Salinometer Monitor Digital Water Tester, Measurement Checker For Pond
Temu US
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$187.00
Hach Pocket Pro High Range TDS Tester 9531300
Core & Main
$240.00
Portable Digital TDS Meter - Multi-Parameter Water Quality Tester
Meubon US
$240.00
Portable Digital TDS Meter - Multi-Parameter Water Quality Tester
Meubon US
$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
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$193.00
Hach Pocket Pro Low Range TDS Tester 9531200
Core & Main
$2.51
PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water
AliExpress
$2.51
PH Meter & TDS Meter Digital Water Quality Tester 0-14 PH Meter Tester 0-9990PPM TDS&EC LCD Water
AliExpress
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Tds-Ez Blue Hm Digital (Tds-Ez) Tds Meter-Monitor For "Total Dissolved Solids" Large
IsoPure Water
Free shipping
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Tds-Ez Blue Hm Digital (Tds-Ez) Tds Meter-Monitor For "Total Dissolved Solids" Large
IsoPure Water
$1,251.00
Hach HQ2100 Portable Multiparameter Ph/Conductivity/TDS/Salinity/DO/ORP, 1 Channel | Cole-Parmer
Cole-Parmer
$1,251.00
Hach HQ2100 Portable Multiparameter Ph/Conductivity/TDS/Salinity/DO/ORP, 1 Channel | Cole-Parmer
Cole-Parmer
$6.79
$20.60
4 in 1 Digital Water Tester TDS Meter 0-9990 PPM Water Quality Tester Pen Backlit LCD Display For
AliExpress
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4 in 1 Digital Water Tester TDS Meter 0-9990 PPM Water Quality Tester Pen Backlit LCD Display For
AliExpress
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Water Quality Tester Best Tds Meter Digital Water Tester 6 in 1 COD TOC TDS Meter For Drinking Tap Water High Precision Ls310 ,Plug-And-Play
Walmart
Free shipping
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Water Quality Tester Best Tds Meter Digital Water Tester 6 in 1 COD TOC TDS Meter For Drinking Tap Water High Precision Ls310 ,Plug-And-Play
Walmart
$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
$9.09
TDS Water Test Meter By Tier1
WaterFilters.NET
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TDS Water Test Meter By Tier1
WaterFilters.NET
$5.48
2Pcs TDS PH Meter Digital Water Tester 0.01Ph High Accuracy PH Meter 0-9990Ppm Temperature TEMP PPM
AliExpress
$5.48
2Pcs TDS PH Meter Digital Water Tester 0.01Ph High Accuracy PH Meter 0-9990Ppm Temperature TEMP PPM
AliExpress
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$49.00
2025 All-New 3 in 1 Tds Meter Digital Water Tester Blue
aueetty
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2025 All-New 3 in 1 Tds Meter Digital Water Tester Blue
aueetty
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PH Tester, 0.01 High-Precision Digital PH Meter, PH/ TDS/ EC/ Salt/ Temperature Tester, PPM Meter Water Tester, Used For Drinking Water,
Temu US
5
$19.09
PH Tester, 0.01 High-Precision Digital PH Meter, PH/ TDS/ EC/ Salt/ Temperature Tester, PPM Meter Water Tester, Used For Drinking Water,
Temu US
$12.89
HM Digital HM-ZT-2, Basic Handheld TDS Meter
Selectum
$12.89
HM Digital HM-ZT-2, Basic Handheld TDS Meter
Selectum
$375.00
REED R3100SD Data Logging Conductivity/TDS/Salinity Meter
Globaltestsupply.com
$375.00
REED R3100SD Data Logging Conductivity/TDS/Salinity Meter
Globaltestsupply.com
$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
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$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
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Shop What Do TDS Meters Test

Sponsored
About our ads
$29.95
HM Digital QC-1 Quick Check TDS Monitor
US Water Systems
$29.95
HM Digital QC-1 Quick Check TDS Monitor
US Water Systems
$29.95
$54.51
Advanced TDS & EC Meter For Reverse Osmosis Systems
US Water Systems
45% off
$29.95
$54.51
Advanced TDS & EC Meter For Reverse Osmosis Systems
US Water Systems
$9.97
TDS Water Tester, 4 in 1 TDS Meter Digital Water Tester, Accurate And Reliable Digital TDS EC & Temp(°C,°F) Meter, 0-9990PPM Water Quality Tester
Amazon.com
$9.97
TDS Water Tester, 4 in 1 TDS Meter Digital Water Tester, Accurate And Reliable Digital TDS EC & Temp(°C,°F) Meter, 0-9990PPM Water Quality Tester
Amazon.com
$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
$276.35
Combo Ph/Conductivity/TDS Tester (High Range)
Certified MTP
$276.35
Combo Ph/Conductivity/TDS Tester (High Range)
Certified MTP
$254.78
Dist 6 EC/TDS/Temp (0.00 To 20.00 Ms/Cm, 0.00 To 10.00)
Certified MTP
$254.78
Dist 6 EC/TDS/Temp (0.00 To 20.00 Ms/Cm, 0.00 To 10.00)
Certified MTP
$170.00
Horiba Laquatwin Conductivity (EC), Salt, TDS Meter
AgTec
$170.00
Horiba Laquatwin Conductivity (EC), Salt, TDS Meter
AgTec
$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
$32.99
Pool Salt Tester - Multifunctional 5 in 1 Salinity, PH, TDS, EC, And Temperature Meter, Pool Salinity Testing Kit, Digital Salinity Tester For
Amazon.com
208
$32.99
Pool Salt Tester - Multifunctional 5 in 1 Salinity, PH, TDS, EC, And Temperature Meter, Pool Salinity Testing Kit, Digital Salinity Tester For
Amazon.com
$2,190.00
Hach HQ4200 Portable Multi-Meter Ph/TDS/DO/ORP/ISE 2 Inputs With Out Electrodes LEV015.53.4200A
Core & Main
$2,190.00
Hach HQ4200 Portable Multi-Meter Ph/TDS/DO/ORP/ISE 2 Inputs With Out Electrodes LEV015.53.4200A
Core & Main
$603.95
$676.96
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With All Three Probes
MSE Supplies
10% off
$603.95
$676.96
Multiparameter Ph/COND/SALT/TDS/DO Water Quality Tester Water Proof, With All Three Probes
MSE Supplies
$89.95
$93.55
Pocket Conductivity/TDS Meter
MSE Supplies
$89.95
$93.55
Pocket Conductivity/TDS Meter
MSE Supplies
$3,059.98
Hanna Multiparameter Ph/EC/TDS/Salinity/DO/Pressure/ Temp Meter
Certified MTP
$3,059.98
Hanna Multiparameter Ph/EC/TDS/Salinity/DO/Pressure/ Temp Meter
Certified MTP
$72.00
Sterisil Total Dissolved Solids (TDS) Handheld Meter TDS-3
Sterilizer Autoclave Solutions
$72.00
Sterisil Total Dissolved Solids (TDS) Handheld Meter TDS-3
Sterilizer Autoclave Solutions
$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
$76.95
$86.96
Water-I.D Electronic TDS-Meter 0-1999 Ppm
MSE Supplies
11% off
$76.95
$86.96
Water-I.D Electronic TDS-Meter 0-1999 Ppm
MSE Supplies
$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
$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