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water tester device ppm
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2026 New Upgraded 4-in-1 Digital TDS Meter - Digital Water Quality Tester for TDS, EC and Temperature (°C/°F) | 0-9990 ppm Range | Suitable for Drinking Water, Reverse Osmosis Systems, Aquariums and Swimming Pools inflatable pool Modern
4.5
41.1K sold
-60%
$
9
.39
$23.50
Free shipping
Portable 4-in-1 Digital TDS Water Tester with EC & Temperature Readings, Accurate 0-9990 PPM Measurement, Ideal for Drinking Water, RO Systems, Aquariums & Pools, Travel-Friendly Design
2.0
87 sold
Limited time deal
-75%
$
5
.87
$23.50
Free shipping
VARIFY 4-in-1 TDS Meter Digital Water Tester for Drinking Water Accurate 0-9990 PPM EC & Temp Readings Ideal for RO Systems Aquariums Pools Portable & Travel-Friendly Halloween Sales
4.6
18.9K sold
Limited time deal
-50%
$
11
.74
$23.50
2025 All-New 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.
4.8
63 sold
Limited time deal
$
3
.51
Free shipping
4 in 1 Digital Water Quality Tester - TDS/EC/Temperature（°C/°F）TDS Meter | 0-9999 ppm | Accurate and Professional for Drinking Water, Hydroponics, Aquariums, RO Systems, Pool （2025 New）
4.8
20 sold
Limited time deal
00:00:00
$
9
.39
Free shipping
2026 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
3.9
305 sold
-70%
$
7
.04
$23.50
2pcs 4in 1 Digital Water Quality Tester TDS/EC/Temperature(°C/°F)TDS Meter (0-9999 Ppm)Accurate and Professional for Drinking Water, Hydroponics, Aquariums, RO Systems, Pool
$
11
.74
Free shipping
4-in-1 TDS Meter Digital Water Tester for Drinking Water Accurate 0-9990 PPM EC & Temp Readings Ideal for RO Systems Aquariums Pools Portable & Travel-Friendly
$
12
.45
TDS Water Quality Tester, Professional 4-in-1 TDS, Temperature EC Meter with Case, Ideal ppm Meter for Drinking Water, Aquariums and More
5.0
15 sold
-53%
$
8
.20
$17.61
Free shipping
2025 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
5.0
20 sold
Limited time deal
00:00:00
$
9
.39
Free shipping
5-in-1 Digital pH Meter, Highly Accurate Water Quality Tester with Backlight Screen, pH/EC/TDS/Salinity/Temp Meter, 0.01 Resolution pH Tester, TDS Meter for Drinking Water, Pool, Aquarium
4.5
32 sold
Limited time deal
-59%
$
19
.97
$48.18
Free shipping
2pcs Digital Water Tester, 0.0-14.0 PH Meter & 0-9990ppm TDS Meter for Aquarium Filter Water Purity PPM
Limited time deal
$
19
.96
Free shipping
Yours Truly Decor 4-in-1 Digital Water Quality Tester | Accurate TDS, EC & Temp Meter for Tap Water & Aquariums | Large Backlit LCD
-40%
$
14
.09
$23.50
Free shipping
2025 4-in-1 Digital TDS Meter - TDS/EC/Temperature(°C/°F) Water Tester ,0-9990ppm Range ,Professional testing for drinking Water/RO/Aquarium/Pool, New digital TDS meter digital water tester,Halloween
3.9
2.8K sold
-38%
$
11
.74
$18.79
Upgraded 4-in-1 TDS Meter Water Tester, PPM EC Temp Digital Water Quality Tester with Color Display for Drinking, Aquarium, Hydroponics Temperature
$
35
.25
Free shipping
2026 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
4.0
12 sold
Limited time deal
-38%
$
11
.73
$18.78
Craft911 Newly Updated - TDS Meter Digital Water Tester for Drinking Water, Aquarium, Swimming Pool, Hydroponics - 3 in 1 Fast & Accurate TDS, PPM, EC Meter 0-9999 - Digital Pool Water Tester
$
19
.95
Free shipping
5-in-1 Digital pH Meter, Highly Accurate Water Quality Tester with Backlight Screen, pH/EC/TDS/Salinity/Temp Meter, 0.01 Resolution pH Tester, TDS Meter for Drinking Water, Pool, Aquarium
5.0
2 sold
Limited time deal
$
18
.79
4 in 1 TDS Meter Digital Water Tester - Professional Testing for Drinking Water, RO/DI System, Aquariums, etc, Accurate and Reliable TDS EC & Temp(?C,?F) Meter - 0-9990ppm - 2025
Limited time deal
$
18
.70
Digital TDS Meter Water Tester, High Precision Chip & Titanium Alloy Probe, 1s Accurate Result 0-9990ppm, Reliable Water Testing Kit for Drinking, Tap, Well Water, Perfect Gift for Family Friends
5.0
2 sold
Limited time deal
$
4
.60
Free shipping
Dazone Water Quality Tester, TDS Meter & EC Meter for Drinking Water 0-9990ppm
4.1
489 sold
$
17
.23
Free shipping
Dazone 1/2 Pcs 4 in 1 TDS Meter Digital Water Quality Tester EC Meter & Temperature Meter, 0-9999 ppm for Hydroponics Pool Aquarium and Water Hardness Test
5.0
11 sold
$
9
.69
3-in-1 Digital Water Quality Tester - TDS, EC, Thermometer for Drinking Water Purity Testing, Aquarium, Outdoor Pool and Spa Water Quality Tester, Accurate and easy to use design, perfect for home or professional water quality testing, Swimming Pool
$
4
.03
Free shipping
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.
4.3
41 sold
Limited time deal
-38%
$
10
.75
$17.22
4-in-1 Digital Water Quality Tester 2026 New Aquarium Fish Tank TDS & EC Meter Test Strips Pond Testing Device for Drinking Water Home Office Restaurant Fast Accurate
Limited time deal
$
6
.99
Water Quality Tester, Accurate and Reliable, TDS Meter, EC Meter & Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Drinking Water, Aquariums
$
21
.54
1-pc Digital Water Quality Tester, 3-in-1 TDS, EC & Temp Meter, 0-9999 ppm, Portable with Backlit Screen, Suitable for Home Drinking Water, Hydroponics and Aquariums, with Portable Case
4.1
530 sold
$
4
.82
Free shipping
Blue TDS Meter Digital Tester Water Quality Testing Kits 3-in-1 Detection EC & Temperature 0-9990ppm Portable for Drinking Water Safety
5.0
3 sold
Limited time deal
-55%
$
8
.92
$19.81
2025 Upgraded 4-in-1 Digital TDS Meter – Accurate TDS, EC & Temperature Tester ( ° C/ ° F) | 0-9990 ppm Range | Water Quality Tester for Drinking Water, RO Systems, Aquariums & Pools water quality tester
$
3
.22
Free shipping
Professional 4 in 1 Digital Water Tester 2025 Model - Highly Accurate TDS EC and Temperature Meter (0-9999ppm) - Reliable Water Quality Test Pen for Home Drinking Water, RO System, Pool and Aquariums
-21%
$
11
.84
$15.08
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9.3K sold
-43%
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-33%
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22
.77
$34.00
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