Td Test(101)
Uses item details. Price when purchased online
Clearance, 3 in 1 TDS Meter Water Tester, Measures TDS, EC & Temp (°F/°C), Digital Water Test Pen for Drinking, Plants Aquarium Pool From $11.99
Clearance
Sponsored
From$1199
3 in 1 TDS Meter Water Tester, Measures TDS, EC & Temp (°F/°C), Digital Water Test Pen for Drinking, Plants Aquarium Pool
Black Friday Deal, PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool $24.59 Was $39.99
Black Friday Deal
Sponsored
Now$2459
current price Now $24.59, Was $39.99$39.99
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool
4.2 out of 5 stars
Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank $23.99 Was $29.99
Sponsored
Now$2399
current price Now $23.99, Was $29.99$29.99
Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank
3.5 out of 5 stars
2 Pack Digital TDS Meter Water Quality Tester 0-9999 PPM EC Temperature Meter Portable Pen Accurate Drinking Water Test Tool For RO Aquarium Pool Hydroponics with LCD Display $11.75 Was $13.99
Sponsored
Now$1175
current price Now $11.75, Was $13.99$13.99
2 Pack Digital TDS Meter Water Quality Tester 0-9999 PPM EC Temperature Meter Portable Pen Accurate Drinking Water Test Tool For RO Aquarium Pool Hydroponics with LCD Display
2.7 out of 5 stars
In 50+ people's carts, All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9999ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc From $10.94
In 50+ people's carts
2 options
Available in additional 2 optionsFrom$1094
All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9999ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc
4.6 out of 5 stars
Best seller, TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water $11.59
Best seller
$1159
current price $11.59TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water
4.2 out of 5 stars
Best seller, Zero Water Tester,Drinking Water Tester,Tds Water Tester,0-9990 Ppm Meter Water Quality Tester,Portable Water Tester for Drinking Water,Tds Meter Digital Water Tester,1 Pack — LAILLSH 2026 New From $3.13
Best seller
From$313
Zero Water Tester,Drinking Water Tester,Tds Water Tester,0-9990 Ppm Meter Water Quality Tester,Portable Water Tester for Drinking Water,Tds Meter Digital Water Tester,1 Pack — LAILLSH 2026 New
4.3 out of 5 stars
Best seller, TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools $7.99 Was $9.20
Best seller
Now$799
current price Now $7.99, Was $9.20$9.20
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools
4.7 out of 5 stars
PH Meter, TDS PPM Meter, 4-in-1 Soil PH Tester, PH/EC Digital Kit, 3 Pack for Home Water, Hydroponics, Botanical Garden Soil and Aquarium Use $20.69
$2069
current price $20.69PH Meter, TDS PPM Meter, 4-in-1 Soil PH Tester, PH/EC Digital Kit, 3 Pack for Home Water, Hydroponics, Botanical Garden Soil and Aquarium Use
3.6 out of 5 stars
4 in 1 TDS Meter Water Tester, Measures TDS, EC, PH & Temperature (°F/°C), Digital Water Test Pen for Drinking Water, Plants, Aquarium Pool From $11.99
2 options
Available in additional 2 optionsFrom$1199
4 in 1 TDS Meter Water Tester, Measures TDS, EC, PH & Temperature (°F/°C), Digital Water Test Pen for Drinking Water, Plants, Aquarium Pool
Reduced price, 5-in-1 Digital Water Quality Tester – PH/TDS/EC/Salinity/Temperature Meter, US Plug Digital PH Meter Pool Salt Tester for Water Temp Meter ATC Household, Hydrophonic, Precision Algorithm Chip $20.15 Was $23.99
Reduced price
Sponsored
Now$2015
current price Now $20.15, Was $23.99$23.99
5-in-1 Digital Water Quality Tester – PH/TDS/EC/Salinity/Temperature Meter, US Plug Digital PH Meter Pool Salt Tester for Water Temp Meter ATC Household, Hydrophonic, Precision Algorithm Chip
3.5 out of 5 stars
Best seller, TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools $7.99 Was $9.20
Best seller
Sponsored
Now$799
current price Now $7.99, Was $9.20$9.20
TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range,Digital Water Test Pen for Farming, Aquariums,Pools
4.7 out of 5 stars
HM Digital TDS-EZ TDS Meter Digital Water Tester, Water Quality Tester, 0-9990 ppm, Blue $16.95
$1695
current price $16.95HM Digital TDS-EZ TDS Meter Digital Water Tester, Water Quality Tester, 0-9990 ppm, Blue
4.6 out of 5 stars
TDS Water Tester, Drinking Water Tester,Portable Water Tester,0-9990 Ppm Meter Water Quality Tester,Digital Water Test Pen for Farming, Aquariums,Pools,Tds Meter Digital Water Tester,Blue $6.48
$648
current price $6.48TDS Water Tester, Drinking Water Tester,Portable Water Tester,0-9990 Ppm Meter Water Quality Tester,Digital Water Test Pen for Farming, Aquariums,Pools,Tds Meter Digital Water Tester,Blue
Reduced price, 5-in-1 Digital Water Quality Tester PH/TDS/EC/Salinity/Temperature Meter, US Plug Digital PH Meter Pool Salt Tester for Water Temp Meter ATC Household, Hydrophonic, Precision Algorithm Chip $20.15 Was $23.99
Reduced price
Now$2015
current price Now $20.15, Was $23.99$23.99
5-in-1 Digital Water Quality Tester PH/TDS/EC/Salinity/Temperature Meter, US Plug Digital PH Meter Pool Salt Tester for Water Temp Meter ATC Household, Hydrophonic, Precision Algorithm Chip
3.5 out of 5 stars
Black Friday Deal, PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool $24.59 Was $39.99
Black Friday Deal
Now$2459
current price Now $24.59, Was $39.99$39.99
PH Meter 8 in 1 Water Quality Tester Pen Meter, Digital PH Pen for TDS/EC/Salinity/Temp/ORP/S. G/PH/H2, Drinking Water Aquariums Hydroponic Cooking Tester Measure, Plants, Aquarium and Pool
4.2 out of 5 stars
Wiher Digital PH Meter, 7 in 1 Water Tester TDS Meter/Salinity Tester/Temp/pH Meter/EC/S.G/ORP Meter for Pool, Fish Tank, Drinking water, hydroponics, Black $19.99 Was $36.99
Now$1999
current price Now $19.99, Was $36.99$36.99
Wiher Digital PH Meter, 7 in 1 Water Tester TDS Meter/Salinity Tester/Temp/pH Meter/EC/S.G/ORP Meter for Pool, Fish Tank, Drinking water, hydroponics, Black
3.7 out of 5 stars
ZOURIH TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water, From $6.69
2 options
Available in additional 2 optionsFrom$669
ZOURIH TDS Meter, Electronic Water Tester with 0-9990 PPM Measurement Range, Hand Held Digital Water Test Pen for Farming, Aquariums, Pools, Household Drinking Water,
4.7 out of 5 stars
iSpring 3-Button Digital TDS Water Quality Test Meter Kit with Temperature Calibration, 0.11 lb $15.99
$1599
current price $15.99iSpring 3-Button Digital TDS Water Quality Test Meter Kit with Temperature Calibration, 0.11 lb
4.3 out of 5 stars
Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank $23.99 Was $29.99
Now$2399
current price Now $23.99, Was $29.99$29.99
Digital PH Meter, 5 in 1 Pool Salt Tester for Water PH / TDS / EC / Salinity / Temp Meter with ATC, for Household Drinking Water Hot Tub Spas Fish Tank
3.5 out of 5 stars
Best seller, TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water $11.59
Best seller
Sponsored
$1159
current price $11.59TDS Meter Digital Water Tester, Accurate Professional 4-in-1 TDS, Temperature and EC Meter, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums,Water Tester for Drinking Water
4.2 out of 5 stars
Wiher Digital PH Meter, 7 in 1 Water Tester TDS Meter/Salinity Tester/Temp/pH Meter/EC/S.G/ORP Meter for Pool, Fish Tank, Drinking water, hydroponics, Black $19.99 Was $36.99
Sponsored
Now$1999
current price Now $19.99, Was $36.99$36.99
Wiher Digital PH Meter, 7 in 1 Water Tester TDS Meter/Salinity Tester/Temp/pH Meter/EC/S.G/ORP Meter for Pool, Fish Tank, Drinking water, hydroponics, Black
3.7 out of 5 stars
MUSICOZY pH Meter for Water, 5 in 1 pH Temp EC TDS Meter for Hydroponics PPM Water Tester Digital, pH Tester Digital with ATC, TDS pH Meter for Water, Wine, Pool, Hydroponics and Aquariums $21.99
$2199
current price $21.99MUSICOZY pH Meter for Water, 5 in 1 pH Temp EC TDS Meter for Hydroponics PPM Water Tester Digital, pH Tester Digital with ATC, TDS pH Meter for Water, Wine, Pool, Hydroponics and Aquariums
3.9 out of 5 stars
HM Digital TDS-4 Pocket-Size TDS Meter, 1 count $26.99
$2699
current price $26.99HM Digital TDS-4 Pocket-Size TDS Meter, 1 count
GJX 2026 New Tds Tester 3-In-1 Tds Ec&Temperature Meter Ultrahigh Accuracy Digital Water Quality Tds Tester $7.74
$774
current price $7.74GJX 2026 New Tds Tester 3-In-1 Tds Ec&Temperature Meter Ultrahigh Accuracy Digital Water Quality Tds Tester
HM Digital TDS-EZ TDS Meter Water Tester for Filtration Systems with LCD Screen, Purple $16.95
$1695
current price $16.95HM Digital TDS-EZ TDS Meter Water Tester for Filtration Systems with LCD Screen, Purple
4.8 out of 5 stars
Portable TDS Water Tester, 0-9990 PPM Range, 2 Second Readout, Blue $9.89
$989
current price $9.89Portable TDS Water Tester, 0-9990 PPM Range, 2 Second Readout, Blue
2026 New TDS Meter Digital Water Tester, TDS EC & Temperature Meter, 0-9990PPM Digital Water Tester with Display & ATC for Drinking Water Aquariums Swimming Pool From $13.98
2 options
Available in additional 2 optionsFrom$1398
2026 New TDS Meter Digital Water Tester, TDS EC & Temperature Meter, 0-9990PPM Digital Water Tester with Display & ATC for Drinking Water Aquariums Swimming Pool
4 in 1 TDS Meter Digital Water Tester for Drinking Water, All New 2025 Portable Water Quality Tester with EC Temp Color Display, PPM Meter Water Tester for Aquarium Hydroponics Tap Water (White) $11.73
$1173
current price $11.734 in 1 TDS Meter Digital Water Tester for Drinking Water, All New 2025 Portable Water Quality Tester with EC Temp Color Display, PPM Meter Water Tester for Aquarium Hydroponics Tap Water (White)
2026 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temperature(C,F) Meter - 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums, Pool, etc. $12.99
$1299
current price $12.992026 All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temperature(C,F) Meter - 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums, Pool, etc.
In 50+ people's carts, All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9999ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc From $10.94
In 50+ people's carts
Sponsored
From$1094
All-New 4 in 1 Tds Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter - 0-9999ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc
4.6 out of 5 stars
2 Pack Digital TDS Meter Water Quality Tester 0-9999 PPM EC Temperature Meter Portable Pen Accurate Drinking Water Test Tool For RO Aquarium Pool Hydroponics with LCD Display $11.75 Was $13.99
Now$1175
current price Now $11.75, Was $13.99$13.99
2 Pack Digital TDS Meter Water Quality Tester 0-9999 PPM EC Temperature Meter Portable Pen Accurate Drinking Water Test Tool For RO Aquarium Pool Hydroponics with LCD Display
2.7 out of 5 stars
2026 4-in-1 Digital Water Tester TDS Meter Backlit LCD for Drinking Water, Tap, Pool & Aquarium, Measures Conductivity & Temperature $6.04
$604
current price $6.042026 4-in-1 Digital Water Tester TDS Meter Backlit LCD for Drinking Water, Tap, Pool & Aquarium, Measures Conductivity & Temperature
3 in 1 Digital TDS, EC, Temperature Meter, Drinking Water Quality Test $10.01
$1001
current price $10.013 in 1 Digital TDS, EC, Temperature Meter, Drinking Water Quality Test
DAMAI 2025 New 4 in 1 Digital Water Quality Tester,0-9990PPM TDS Meter Digital Water Tester,Professional Testing for Drinking Water, Hydroponics, Aquariums, RO Systems Swimming Pools $6.97
$697
current price $6.97DAMAI 2025 New 4 in 1 Digital Water Quality Tester,0-9990PPM TDS Meter Digital Water Tester,Professional Testing for Drinking Water, Hydroponics, Aquariums, RO Systems Swimming Pools
2026 All-New 4-in-1 TDS Meter: Test TDS, EC & Temp (C/F) with 0-9999 ppm Range. Accurate Digital Water Tester for Drinking Water, RO/DI Systems, Aquariums, Hydroponics. $11.40
$1140
current price $11.402026 All-New 4-in-1 TDS Meter: Test TDS, EC & Temp (C/F) with 0-9999 ppm Range. Accurate Digital Water Tester for Drinking Water, RO/DI Systems, Aquariums, Hydroponics.
5 out of 5 stars
TDS Water Quality Tester High Accuracy Digital Testing Kit for Drink Integrated $9.28
$928
current price $9.28TDS Water Quality Tester High Accuracy Digital Testing Kit for Drink Integrated
HM Digital HMDCOM100 Water Quality Tester, Waterproof EC, TDS, and Temperature Meter $68.13
$6813
current price $68.13HM Digital HMDCOM100 Water Quality Tester, Waterproof EC, TDS, and Temperature Meter
HM Digital TDS-4 Pocket Size TDS Tester Meter with 0-9990 ppm Measurement Range , 1 ppm Resolution, +/- 2% Readout Accuracy $25.99
$2599
current price $25.99HM Digital TDS-4 Pocket Size TDS Tester Meter with 0-9990 ppm Measurement Range , 1 ppm Resolution, +/- 2% Readout Accuracy
3 in 1 Water Quality Tester,Digital LCD Water Quality Testing Pen Purity Filter TDS Meter Tester 09999 PPM Temp Portable [white] $13.00 Was $18.84
![3 in 1 Water Quality Tester,Digital LCD Water Quality Testing Pen Purity Filter TDS Meter Tester 09999 PPM Temp Portable [white]](https://i5.walmartimages.com/seo/3-in-1-Water-Quality-Tester-Digital-LCD-Water-Quality-Testing-Pen-Purity-Filter-TDS-Meter-Tester-0-9999-PPM-Temp-Portable-white_78edb68c-3180-47c0-9912-54c710f15723.0e5d9fad3b8b4fa1f13a8c093f0a9e42.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
Now$1300
current price Now $13.00, Was $18.84$18.84
3 in 1 Water Quality Tester,Digital LCD Water Quality Testing Pen Purity Filter TDS Meter Tester 09999 PPM Temp Portable [white]
4 out of 5 stars
3-In-1 Water Quality Tester Portable TDS EC Temperature Meter with HD LED Display Blue, 16.0 x 3.0 x 2.0 inches / 40.6 x 7.6 x 5.1 cm Professional Water Quality Detector for Drinking Water Pool Was $9.52
2 options
Available in additional 2 options3-In-1 Water Quality Tester Portable TDS EC Temperature Meter with HD LED Display Blue, 16.0 x 3.0 x 2.0 inches / 40.6 x 7.6 x 5.1 cm Professional Water Quality Detector for Drinking Water Pool
Home Water Quality Testing TDS EC Meter with Temperature - 0-9999 PPM, 4 Display Modes, 1-Unit Pack $9.82
$982
current price $9.82Home Water Quality Testing TDS EC Meter with Temperature - 0-9999 PPM, 4 Display Modes, 1-Unit Pack
2X Tds Meter Digital Water Tester-Water Testing Kits for Drinking Water for Home, Well, Tap Water Test (Without Battery),2 x Tds Meter,White&Black $8.90
$890
current price $8.902X Tds Meter Digital Water Tester-Water Testing Kits for Drinking Water for Home, Well, Tap Water Test (Without Battery),2 x Tds Meter,White&Black
Water Quality Tester Accurate TDS Water Meter Fast and Easy Water Test Meter Digital Water Tester Multifunctional Meter TDS Water Tester for Drinking Hydroponics Aquarium $6.29
$629
current price $6.29Water Quality Tester Accurate TDS Water Meter Fast and Easy Water Test Meter Digital Water Tester Multifunctional Meter TDS Water Tester for Drinking Hydroponics Aquarium
5 out of 5 stars
2026 All-New 4-in-1 TDS Meter: Test TDS, EC & Temp (C/F) with 0-9999 ppm Range. Accurate Digital Water Tester for Drinking Water, RO/DI Systems, Aquariums, Hydroponics. $14.89
$1489
current price $14.892026 All-New 4-in-1 TDS Meter: Test TDS, EC & Temp (C/F) with 0-9999 ppm Range. Accurate Digital Water Tester for Drinking Water, RO/DI Systems, Aquariums, Hydroponics.
4-in-1 Digital Water Quality Tester, TDS EC PPM Temperature Meter, Portable 0-9990ppm Water Purity Test Kit for Drinking Water, Aquarium, Pool & Hydroponics $8.99
$899
current price $8.994-in-1 Digital Water Quality Tester, TDS EC PPM Temperature Meter, Portable 0-9990ppm Water Purity Test Kit for Drinking Water, Aquarium, Pool & Hydroponics
5-in-1 Water Quality Tester, Digital PH/TDS/EC/Salinity/Temperature Meter with ATC, High Accuracy 0.01 PH Test Pen for Drinking, Tap, Well, Pool, Aquarium, Hydroponics $17.99
$1799
current price $17.995-in-1 Water Quality Tester, Digital PH/TDS/EC/Salinity/Temperature Meter with ATC, High Accuracy 0.01 PH Test Pen for Drinking, Tap, Well, Pool, Aquarium, Hydroponics
TDS Meter Digital Water Tester, ppm Meter for Drinking Water, ATC, Hold and Auto-Off Functions, Portable ppm Meter for Tap Water, RO Filters, Aquariums, Pools and Hydroponics, 1Pc,Z1-Blue $5.29 Was $5.99
Now$529
current price Now $5.29, Was $5.99$5.99
TDS Meter Digital Water Tester, ppm Meter for Drinking Water, ATC, Hold and Auto-Off Functions, Portable ppm Meter for Tap Water, RO Filters, Aquariums, Pools and Hydroponics, 1Pc,Z1-Blue
Tds Meter Digital Water Tester-Water Testing Kits for Drinking Water for Home, Well, Tap Water Test (with Battery) $5.69 Was $9.09
Now$569
current price Now $5.69, Was $9.09$9.09
Tds Meter Digital Water Tester-Water Testing Kits for Drinking Water for Home, Well, Tap Water Test (with Battery)
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