Rohs Tester(27)
Uses item details. Price when purchased online
CoreLiving 4 in 1 Digital Water Tester and TDS Meter with EC & Temperature (C/F) Function, 0-9999 ppm Water Quality Test Kit for Drinking Water, RO/DI System, Aquariums and Hydroponics, 1 Tester $4.16
$416
current price $4.16CoreLiving 4 in 1 Digital Water Tester and TDS Meter with EC & Temperature (C/F) Function, 0-9999 ppm Water Quality Test Kit for Drinking Water, RO/DI System, Aquariums and Hydroponics, 1 Tester
Instant Meter Digital Water Tester for Drinking Water | Accurate 09990 PPM EC & Temp Readings | Ideal for RO Systems,Aquariums,Pools Built for Professionals,Easy for Anyone,0.94x5.51 inch (Blue) $5.99 Was $7.09
Now$599
current price Now $5.99, Was $7.09$7.09
Instant Meter Digital Water Tester for Drinking Water | Accurate 09990 PPM EC & Temp Readings | Ideal for RO Systems,Aquariums,Pools Built for Professionals,Easy for Anyone,0.94x5.51 inch (Blue)
Digital Water Quality Tester: 4-in-1 TDS Meter (TDS,EC,Temp C/F) | 0-9990 ppm | Perfect for Drinking Water,RO Systems & Pools $4.48
$448
current price $4.48Digital Water Quality Tester: 4-in-1 TDS Meter (TDS,EC,Temp C/F) | 0-9990 ppm | Perfect for Drinking Water,RO Systems & Pools
Clearance 4 in 1 TDS Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter, 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc Was $8.69
4 in 1 TDS Meter Digital Water Tester - Accurate and Reliable TDS EC & Temp(°C,°F) Meter, 0-9990ppm - Professional Testing for Drinking Water, RO/DI System, Aquariums etc
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 $3.97
$397
current price $3.97DAMAI 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
Portable 4-in-1 Digital TDS Water Tester Meter with EC, Temp & Color Display for Tap, RO & Bottled Water $8.99
$899
current price $8.99Portable 4-in-1 Digital TDS Water Tester Meter with EC, Temp & Color Display for Tap, RO & Bottled Water
Digital Water Purifier TDS Tester, 4-in-1 Water Quality Meter with EC & Temperature Measurement, Backlit LCD Display, Auto Shut-Off, Water Purity Tester for Drinking Water, RO Systems, Aquariums $19.99
$1999
current price $19.99Digital Water Purifier TDS Tester, 4-in-1 Water Quality Meter with EC & Temperature Measurement, Backlit LCD Display, Auto Shut-Off, Water Purity Tester for Drinking Water, RO Systems, Aquariums
Digital Water Tester for Drinking Water, TDS/EC/TemperatureC/F, RO/DI System, Aquariums Etc Meter | 0-9999 ppm $14.99
$1499
current price $14.99Digital Water Tester for Drinking Water, TDS/EC/TemperatureC/F, RO/DI System, Aquariums Etc Meter | 0-9999 ppm
Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More(5PCS) From $15.91
2 options
Available in additional 2 optionsFrom$1591
Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More(5PCS)
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. $17.98
$1798
current price $17.982026 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.
15 out of 5 Stars. 1 reviews
FeelGlad Water Quality Tester, Digital TDS Meter, EC Meter and Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Hydroponics, Ro System, Pool, Aquarium, Spa and Water Hardness $9.99
$999
current price $9.99FeelGlad Water Quality Tester, Digital TDS Meter, EC Meter and Temperature Meter 3 in 1, 0-9990ppm, Ideal Water Test Meter for Hydroponics, Ro System, Pool, Aquarium, Spa and Water Hardness
25 out of 5 Stars. 2 reviews
2025 AllNew 4 in 1 Tds Meter Digital Water Tester Accurate And Reliable Tds Ec & Temp(C ,F) Meter 09990Ppm Professional Testing for Drinking Water, Ro/Di System, Aquariums Etc $5.01
$501
current price $5.012025 AllNew 4 in 1 Tds Meter Digital Water Tester Accurate And Reliable Tds Ec & Temp(C ,F) Meter 09990Ppm Professional Testing for Drinking Water, Ro/Di System, Aquariums Etc
Clearance 6In Digital Water Quality Tester for Drinking Water, 4 in 1 Meter with Temperature Monitor, Accurate Hardness Checker for Aquarium Pool Hydroponics Ro System (1Pcs, White) $2.99 Was $5.89
Now$299
current price Now $2.99, Was $5.89$5.89
6In Digital Water Quality Tester for Drinking Water, 4 in 1 Meter with Temperature Monitor, Accurate Hardness Checker for Aquarium Pool Hydroponics Ro System (1Pcs, White)
Clearance Digital pH TDS & EC Temp Meter for Water,pH Pen and PPM Tester TDS-EC-Temperature Meter,PH Tester with 0-14.00pH and 0.01 Accuracy,TDS EC PH Meters for Aquarium,Hydroponic,RO System $6.00 Was $15.99
Now$600
current price Now $6.00, Was $15.99$15.99
Digital pH TDS & EC Temp Meter for Water,pH Pen and PPM Tester TDS-EC-Temperature Meter,PH Tester with 0-14.00pH and 0.01 Accuracy,TDS EC PH Meters for Aquarium,Hydroponic,RO System
GJX 4 in 1 Digital Water Quality Tester - TDS/EC/TemperatureC/FTDS Meter | 0-9999 ppm | Accurate and Professional for Drinking Water, Hydroponics, Aquariums, RO Systems, Pool $7.37
$737
current price $7.37GJX 4 in 1 Digital Water Quality Tester - TDS/EC/TemperatureC/FTDS Meter | 0-9999 ppm | Accurate and Professional for Drinking Water, Hydroponics, Aquariums, RO Systems, Pool
Best seller 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 $11.99 Was $21.98
Now$1199
current price Now $11.99, Was $21.98$21.98
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
24.5 out of 5 Stars. 2 reviews
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CURUK Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More $8.99
$899
current price $8.99CURUK Water Quality Tester,0-9999ppm Meter,LCD Display,Accuracy Testing Water Meter for Drinking Water, Aquariums,RO System,Swinging Pool and More
Clearance 2 Pack TDS Digital Water Tester,Electronic Water Testers,Accurate and Reliable TDS EC & Temp(°C,°F) Meter,Water Test Meter for Drinking Water,RO/DI System and Aquariums,Blue(5.51x0.94")(Blue*2) Was $7.69
2 Pack TDS Digital Water Tester,Electronic Water Testers,Accurate and Reliable TDS EC & Temp(°C,°F) Meter,Water Test Meter for Drinking Water,RO/DI System and Aquariums,Blue(5.51x0.94")(Blue*2)
BANIRO Instant 4-In-1 Tds Meter Digital Water Tester for Drinking Water | Accurate 09990 Ppm Ec&Temp Readings | Ideal for Ro Systems,Aquariums,Pools Built for Professionals,Easy for Anyone $9.23
$923
current price $9.23BANIRO Instant 4-In-1 Tds Meter Digital Water Tester for Drinking Water | Accurate 09990 Ppm Ec&Temp Readings | Ideal for Ro Systems,Aquariums,Pools Built for Professionals,Easy for Anyone
4-in-1 TDS Meter Digital Water Tester, Accurate TDS EC & Temperature Tester with Backlit LCD, for Drinking Water, Aquarium, Hydroponics, Pool, RO/DI System Water Quality Testing Was $8.89
4-in-1 TDS Meter Digital Water Tester, Accurate TDS EC & Temperature Tester with Backlit LCD, for Drinking Water, Aquarium, Hydroponics, Pool, RO/DI System Water Quality Testing
New 4 in 1 Tds Meter Digital Water Teste,Water Tester for Drinking Waters for Tap,Well,Pool,Hydroponics,Aquarium,Ro/Di System,Compact and Portable (White-Leather Case) $5.48
$548
current price $5.48New 4 in 1 Tds Meter Digital Water Teste,Water Tester for Drinking Waters for Tap,Well,Pool,Hydroponics,Aquarium,Ro/Di System,Compact and Portable (White-Leather Case)
GJX 4-in-1 Digital TDS Meter, Water Quality Tester for EC & Temp, 0-9990PPM Pen Tool for Drinking Water RO System Aquariums $7.06
$706
current price $7.06GJX 4-in-1 Digital TDS Meter, Water Quality Tester for EC & Temp, 0-9990PPM Pen Tool for Drinking Water RO System Aquariums
TDS Meter, Digital Water Quality Tester with ATC, 0-9990 ppm Measuring Range, Portable Water Tester for Drinking Water, Tap Water, Aquariums, RO/RODI Systems (White) $19.98
$1998
current price $19.98TDS Meter, Digital Water Quality Tester with ATC, 0-9990 ppm Measuring Range, Portable Water Tester for Drinking Water, Tap Water, Aquariums, RO/RODI Systems (White)
GJX 4 in 1 Tds Meter Digital Water Tester, Accurate Tds Ec & Temperature (C/F) Meter 0-9999Ppm for Tap Water, Ro System, Aquarium $7.59
$759
current price $7.59GJX 4 in 1 Tds Meter Digital Water Tester, Accurate Tds Ec & Temperature (C/F) Meter 0-9999Ppm for Tap Water, Ro System, Aquarium
CaraMartThree-in-One Testing Pen Temperature Conductivity TDS for Drinking Water, RO/DI System, Aquariums BLUE
CaraMartThree-in-One Testing Pen Temperature Conductivity TDS for Drinking Water, RO/DI System, Aquariums BLUE
Solivara Water Testing Kits For Drinking Water 4 In 1 Tds Meter With Temperature For Tap Well Pool Hydroponics Aquarium Ro Di System (White,6.3in) $7.99
$799
current price $7.99Solivara Water Testing Kits For Drinking Water 4 In 1 Tds Meter With Temperature For Tap Well Pool Hydroponics Aquarium Ro Di System (White,6.3in)
Jonard Tools FPM-50A - Optical power meter $300.16
$30016
current price $300.16Jonard Tools FPM-50A - Optical power meter
Other options to consider(124)
Clearance VKLU Digital TDS Meter Water Quality Tester, 0-9990 PPM Portable PPM Monitor for Drinking Water, RO System & Aquariums, Fast Read Purity Checker From $3.99
From$399
VKLU Digital TDS Meter Water Quality Tester, 0-9990 PPM Portable PPM Monitor for Drinking Water, RO System & Aquariums, Fast Read Purity Checker
YAHHU Digital PH Meters Water Quality Tester Pen 0.01pH High Accuracy 0-60 Celsius 0-14 PH Measurement Range Ideal for Drinking Water Pool Aquarium RO System Hydroponics Brewing and Food Testing $11.50
$1150
current price $11.50YAHHU Digital PH Meters Water Quality Tester Pen 0.01pH High Accuracy 0-60 Celsius 0-14 PH Measurement Range Ideal for Drinking Water Pool Aquarium RO System Hydroponics Brewing and Food Testing
Clearance Clearance All New 4 In 1 Tds Meter Digital Water Tester Accurate And Reliable TDS & Temp(°C °F) Meter 0 0 Testing For Drinking Water RO/DI System Aquariums Etc From $7.27
From$727
Clearance All New 4 In 1 Tds Meter Digital Water Tester Accurate And Reliable TDS & Temp(°C °F) Meter 0 0 Testing For Drinking Water RO/DI System Aquariums Etc
New TDS Water Tester, TDS Meter Digital Water Tester - High Accurate and Reliable Digital PPM Meter, 0-9990PPM Water Quality Tester for Drinking Water RO/DI System Wine Pool Food Hydroponics, Green $10.01
$1001
current price $10.01New TDS Water Tester, TDS Meter Digital Water Tester - High Accurate and Reliable Digital PPM Meter, 0-9990PPM Water Quality Tester for Drinking Water RO/DI System Wine Pool Food Hydroponics, Green
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Electronic Water Tester, Drinking Water RO System Hydroponic Aquarium, Features Unique Temperature Compensation, High Accuracy pH Meter, and Total Dissolved Solids $15.99
$1599
current price $15.99Electronic Water Tester, Drinking Water RO System Hydroponic Aquarium, Features Unique Temperature Compensation, High Accuracy pH Meter, and Total Dissolved Solids
PH Meter,TDS Meter Combo,Pool Water Test Kit,PH Tester Digital,PPM Meter,0.01 Resolution TDS PH EC Temperature 4 in 1 Set for Drinking Water,Hydroponics,RO System,Aquarium,Swimming
PH Meter,TDS Meter Combo,Pool Water Test Kit,PH Tester Digital,PPM Meter,0.01 Resolution TDS PH EC Temperature 4 in 1 Set for Drinking Water,Hydroponics,RO System,Aquarium,Swimming
15 out of 5 Stars. 1 reviews
NFTIGB pH-98103 Professional Portable Pen Type pH Meter with LCD Backlit Display Water Quality Tester (7.1 inches / 18 cm)[cite: 1] $25.87
![NFTIGB pH-98103 Professional Portable Pen Type pH Meter with LCD Backlit Display Water Quality Tester (7.1 inches / 18 cm)[cite: 1]](https://i5.walmartimages.com/seo/NFTIGB-pH-98103-Professional-Portable-Pen-Type-pH-Meter-with-LCD-Backlit-Display-Water-Quality-Tester-7-1-inches-18-cm-cite-1_90018a36-4815-4c32-966c-4ce7dcb6fc0a.87f8676e071c8c46b825c0bce5fc2ebd.jpeg?odnHeight=576&odnWidth=576&odnBg=FFFFFF)
$2587
current price $25.87NFTIGB pH-98103 Professional Portable Pen Type pH Meter with LCD Backlit Display Water Quality Tester (7.1 inches / 18 cm)[cite: 1]
HCTSHG Meter Water Tester, Digital TDS Meter Water Quality Tester Measuring Range 0-999, Ideal for Drinking Water, Swimming Pool, Aquariums, Hydroponics, RO DI Filter, Tap Well Water
HCTSHG Meter Water Tester, Digital TDS Meter Water Quality Tester Measuring Range 0-999, Ideal for Drinking Water, Swimming Pool, Aquariums, Hydroponics, RO DI Filter, Tap Well Water
Digital TDS Meter Water Quality Tester - 0-9999 ppm, High Accuracy, Portable Pen for Drinking Water RO Aquarium Pool $40.00
$4000
current price $40.00Digital TDS Meter Water Quality Tester - 0-9999 ppm, High Accuracy, Portable Pen for Drinking Water RO Aquarium Pool
NFTIGB Professional pH-007T Pen-Type pH Meter High Precision Acidity Tester with ATC Auto Calibration Backlight LCD Water Quality Analysis Device $25.39
$2539
current price $25.39NFTIGB Professional pH-007T Pen-Type pH Meter High Precision Acidity Tester with ATC Auto Calibration Backlight LCD Water Quality Analysis Device
Enabled 7-in-1 Water Quality Tester, Digital PH TDS ORP EC CF Temp & Humidity Monitor for Aquarium ,Easy to Use $167.72
$16772
current price $167.72Enabled 7-in-1 Water Quality Tester, Digital PH TDS ORP EC CF Temp & Humidity Monitor for Aquarium ,Easy to Use
Triplett Network Cable Tester,9"H x 7"W x 1-3/4"D CTX200PA $139.98
$13998
current price $139.98Triplett Network Cable Tester,9"H x 7"W x 1-3/4"D CTX200PA
Wifi 7 in 1 Water Quality Tester PH ORP TDS EC Temp Humidity Meter Aquarium Online Analyzer Water Analyze Monitor $71.25
$7125
current price $71.25Wifi 7 in 1 Water Quality Tester PH ORP TDS EC Temp Humidity Meter Aquarium Online Analyzer Water Analyze Monitor
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