Shop Digital Test Kit for Aquariums

Sponsored
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$2,145.00
Crystal Engineering XP3I-10KPSI Xp3i Digital Test Gauge, 10K PSI
Transcat
$2,145.00
Crystal Engineering XP3I-10KPSI Xp3i Digital Test Gauge, 10K PSI
Transcat
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$131.99
Extech PH90 Waterproof Ph Meter - Pocket Digital Tester For Water, Beverages, Aquariums, Pools & Labs, 0-14 Ph Range, Replaceable Electrode, Auto
Amazon.com
30
Free shipping
$131.99
Extech PH90 Waterproof Ph Meter - Pocket Digital Tester For Water, Beverages, Aquariums, Pools & Labs, 0-14 Ph Range, Replaceable Electrode, Auto
Amazon.com
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
Free shipping
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
$179.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
30
Free shipping
$179.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
$1,551.12
$1,686.00
Druck DPI104 IS Digital Test Gauge, 300 PSI, 1/4" NPTM
Transcat
$1,551.12
$1,686.00
Druck DPI104 IS Digital Test Gauge, 300 PSI, 1/4" NPTM
Transcat
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
52% off
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
$167.81
PCE Instruments PCE-PH20, Waterproof Aquarium Ph Meter With External Ph Electrode
Selectum
$167.81
PCE Instruments PCE-PH20, Waterproof Aquarium Ph Meter With External Ph Electrode
Selectum
$266.28
Solaxx - Digital Test Meter, Solaxx Safedip, 6 in 1 : MET20A
PartsForSpas
$266.28
Solaxx - Digital Test Meter, Solaxx Safedip, 6 in 1 : MET20A
PartsForSpas
$51.99
$103.98
Aquacheck Pro 2In1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums - Round | Inspired Finds
Inspire Uplift
Free shipping
50% off
$51.99
$103.98
Aquacheck Pro 2In1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums - Round | Inspired Finds
Inspire Uplift
$83.99
PCE Instruments PCE-PHM 12, Aquarium Ph Meter With Temperature Compensation Up To 50 Deg. C
Selectum
$83.99
PCE Instruments PCE-PHM 12, Aquarium Ph Meter With Temperature Compensation Up To 50 Deg. C
Selectum
$39.97
$79.94
LCD Tester Pocket Hydroponics, Digital Electric PH Meter, Aquarium Water Test Pen | The Cart Load
Inspire Uplift
Free shipping
50% off
$39.97
$79.94
LCD Tester Pocket Hydroponics, Digital Electric PH Meter, Aquarium Water Test Pen | The Cart Load
Inspire Uplift
$25.75
$50.48
API Freshwater Aquarium Master Test Kit, 800 Count
Chewy.com
353
48% off
$25.75
$50.48
API Freshwater Aquarium Master Test Kit, 800 Count
Chewy.com
$29.97
$59.94
Digital Electric PH Meter LCD Tester Pocket Hydroponics & Aquarium Water Test Pen For Accurate Water Quality Measurement | Dynamicdeals
Inspire Uplift
Free shipping
50% off
$29.97
$59.94
Digital Electric PH Meter LCD Tester Pocket Hydroponics & Aquarium Water Test Pen For Accurate Water Quality Measurement | Dynamicdeals
Inspire Uplift
$49.99
$54.99
Comprehensive 5-In-1 Water Quality Meter: Freshwater & Saltwater Testing For Pools, Spas & Aquariums
Tilswall US
$49.99
$54.99
Comprehensive 5-In-1 Water Quality Meter: Freshwater & Saltwater Testing For Pools, Spas & Aquariums
Tilswall US
$27.99
5-In-1 Digital Ph Meter For Water Quality Testing In Hydroponics And Aquariums
Evalm
$27.99
5-In-1 Digital Ph Meter For Water Quality Testing In Hydroponics And Aquariums
Evalm
$54.00
Waterproof EC / TDS / Temperature Combo Meter COM-100
Cannon Water Technology
$54.00
Waterproof EC / TDS / Temperature Combo Meter COM-100
Cannon Water Technology
$18.99
6 in 1 Digital Water Quality Tester For Ph EC TDS Salt Temperature Ideal For Drinking Water And Aquariums
Evalm
$18.99
6 in 1 Digital Water Quality Tester For Ph EC TDS Salt Temperature Ideal For Drinking Water And Aquariums
Evalm
$85.00
Seawater Pro TDS Monitor Handheld
Seawater Pro, LLC
$85.00
Seawater Pro TDS Monitor Handheld
Seawater Pro, LLC
$13.98
Copper Test Kit By Aquarium Pharmaceuticals
ThePondOutlet
685
$13.98
Copper Test Kit By Aquarium Pharmaceuticals
ThePondOutlet
$13.11
3 in 1 Digital Water Quality Tester For TDS, EC, And Temperature In Drinking Water And Aquariums
Evalm
$13.11
3 in 1 Digital Water Quality Tester For TDS, EC, And Temperature In Drinking Water And Aquariums
Evalm
$13.99
Fluval Fresh Ph Low Range Fish Water Test Kit
Chewy.com
$13.99
Fluval Fresh Ph Low Range Fish Water Test Kit
Chewy.com
$25.99
ATC Digital PH Monitor - Aquarium Water Quality Testing Kit
Digitalzakka
$25.99
ATC Digital PH Monitor - Aquarium Water Quality Testing Kit
Digitalzakka
$22.34
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
167
$22.34
HM Digital TDS-4TM, Aquarium TDS Meter With Digital Thermometer
Selectum
$17.00
$27.42
PH EC TEMP Meter Digital Pen Type 3 in 1 Multi-Parameter Drink Water Quality Tester For Aquarium,
AliExpress
Free shipping
38% off
$17.00
$27.42
PH EC TEMP Meter Digital Pen Type 3 in 1 Multi-Parameter Drink Water Quality Tester For Aquarium,
AliExpress
$49.99
Tilswall Digital Ph Meter With ATC For Water, Pool, Aquarium, Hydroponics
Tilswall US
$49.99
Tilswall Digital Ph Meter With ATC For Water, Pool, Aquarium, Hydroponics
Tilswall US
$2.88
$6.00
Digital TDS Meter Water Tester PPM Water Quality Pen Measuring Range 0-9999 PPM Ideal For Aquariums
AliExpress
52% off
$2.88
$6.00
Digital TDS Meter Water Tester PPM Water Quality Pen Measuring Range 0-9999 PPM Ideal For Aquariums
AliExpress
$19.42
5 in 1 Water Quality Tester Digital TDS/EC/PH/Salinity/Temperature Meter For Pools Aquariums Water
AliExpress
Free shipping
$19.42
5 in 1 Water Quality Tester Digital TDS/EC/PH/Salinity/Temperature Meter For Pools Aquariums Water
AliExpress
$51.99
Digital 6-In-1 Water Quality Tester With Wi-Fi And App Monitoring, Perfect For Aquariums, Labs & Drinking Water - Includes Alarm Notification Feature
Digitalzakka
$51.99
Digital 6-In-1 Water Quality Tester With Wi-Fi And App Monitoring, Perfect For Aquariums, Labs & Drinking Water - Includes Alarm Notification Feature
Digitalzakka
$49.99
$50.99
Fluval Mini Master Fish Water Test Kit
Chewy.com
$49.99
$50.99
Fluval Mini Master Fish Water Test Kit
Chewy.com
$43.73
$45.98
Digital Water Tester Test Kit With Accurate And Reliable TDS EC For Drinking Water, RO/DI System, Aquariums
Home Depot
Free shipping
$43.73
$45.98
Digital Water Tester Test Kit With Accurate And Reliable TDS EC For Drinking Water, RO/DI System, Aquariums
Home Depot
$16.99
API Phosphate Test Kit Freshwater And Saltwater Aquarium
Pets Warehouse
16K+
$16.99
API Phosphate Test Kit Freshwater And Saltwater Aquarium
Pets Warehouse
$41.99
$84.41
5-In-1 Digital Water Quality Tester High Precision Ph Tds Ec Salinity Temperature Measurement With Led Display Easy To Clean For Fish Tanks And Ponds
LightInTheBox
50% off
$41.99
$84.41
5-In-1 Digital Water Quality Tester High Precision Ph Tds Ec Salinity Temperature Measurement With Led Display Easy To Clean For Fish Tanks And Ponds
LightInTheBox
$11.99
API Ph Test Kit Freshwater Aquarium
Pets Warehouse
3K+
$11.99
API Ph Test Kit Freshwater Aquarium
Pets Warehouse
$17.99
API Ph Test & Adjuster Kit For Freshwater Aquarium
Pets Warehouse
632
$17.99
API Ph Test & Adjuster Kit For Freshwater Aquarium
Pets Warehouse
The 9 Best Aquarium Test Kits For 2026 – Reviewed
The 9 Best Aquarium Test Kits For 2026 – Reviewed
2K viewsJul 14, 2019
aquariumstoredepot.com
AquaChek TruTest Digital Test Strip Reader For Pool and Spa Water Testing - Tests for Free Chlorine, Free Bromine, pH, and Total Alkalinity - Quick & Accurate Results Includes 25 TruTest Strips (Blue)
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AquaChek TruTest Digital Test Strip Reader For Pool and Spa Water Testing - Tests for Free Chlorine, Free Bromine, pH, and Total Alkalinity - Quick & Accurate Results Includes 25 TruTest Strips (Blue)
100 viewsSep 21, 2012
amazon
Reef, Saltwater & Freshwater Aquarium Testing Made Easy | Simplicity Rapid Test Strips
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Reef, Saltwater & Freshwater Aquarium Testing Made Easy | Simplicity Rapid Test Strips
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API AQUASPIN Photometer Unboxing & Set Up Video
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Shop Digital Test Kit for Aquariums

Sponsored
About our ads
$2,145.00
Crystal Engineering XP3I-10KPSI Xp3i Digital Test Gauge, 10K PSI
Transcat
$2,145.00
Crystal Engineering XP3I-10KPSI Xp3i Digital Test Gauge, 10K PSI
Transcat
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$159.95
HM Digital Ph/TDS/EC/Temperature Digital Water Tester Com-300
Cannon Water Technology
$131.99
Extech PH90 Waterproof Ph Meter - Pocket Digital Tester For Water, Beverages, Aquariums, Pools & Labs, 0-14 Ph Range, Replaceable Electrode, Auto
Amazon.com
30
Free shipping
$131.99
Extech PH90 Waterproof Ph Meter - Pocket Digital Tester For Water, Beverages, Aquariums, Pools & Labs, 0-14 Ph Range, Replaceable Electrode, Auto
Amazon.com
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$39.95
HM Digital COM-80 EC/TDS Hydrotester
Cannon Water Technology
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
Free shipping
$65.99
DANOPLUS Smart Water Quality Tester, 24 Hrs Wireless App Monitoring Of Ph EC TDS Salinity SG Temperature, Mountable With Alarm Function For Aquariums
Amazon.com
$179.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
30
Free shipping
$179.99
Kactoily Smart Aquarium Water Monitor, Salinity Ph ORP TDS EC Temp Multi-Parameter Tester For Freshwater Saltwater Fish Tanks Real-Time Alerts
Amazon.com
$1,551.12
$1,686.00
Druck DPI104 IS Digital Test Gauge, 300 PSI, 1/4" NPTM
Transcat
$1,551.12
$1,686.00
Druck DPI104 IS Digital Test Gauge, 300 PSI, 1/4" NPTM
Transcat
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
52% off
$321.86
$677.60
Micro Matic USA PH-METER PH Tester Digital Water Testing Kit With Auto Calibration | Commercial Restaurant Supply
RestaurantSupply.com
$167.81
PCE Instruments PCE-PH20, Waterproof Aquarium Ph Meter With External Ph Electrode
Selectum
$167.81
PCE Instruments PCE-PH20, Waterproof Aquarium Ph Meter With External Ph Electrode
Selectum
$266.28
Solaxx - Digital Test Meter, Solaxx Safedip, 6 in 1 : MET20A
PartsForSpas
$266.28
Solaxx - Digital Test Meter, Solaxx Safedip, 6 in 1 : MET20A
PartsForSpas
$51.99
$103.98
Aquacheck Pro 2In1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums - Round | Inspired Finds
Inspire Uplift
Free shipping
50% off
$51.99
$103.98
Aquacheck Pro 2In1 Digital PH And Chlorine Meter Professional Water Quality Tester For Pools, Spas & Aquariums - Round | Inspired Finds
Inspire Uplift
$83.99
PCE Instruments PCE-PHM 12, Aquarium Ph Meter With Temperature Compensation Up To 50 Deg. C
Selectum
$83.99
PCE Instruments PCE-PHM 12, Aquarium Ph Meter With Temperature Compensation Up To 50 Deg. C
Selectum
$39.97
$79.94
LCD Tester Pocket Hydroponics, Digital Electric PH Meter, Aquarium Water Test Pen | The Cart Load
Inspire Uplift
Free shipping
50% off
$39.97
$79.94
LCD Tester Pocket Hydroponics, Digital Electric PH Meter, Aquarium Water Test Pen | The Cart Load
Inspire Uplift
$25.75
$50.48
API Freshwater Aquarium Master Test Kit, 800 Count
Chewy.com
353
48% off
$25.75
$50.48
API Freshwater Aquarium Master Test Kit, 800 Count
Chewy.com
$29.97
$59.94
Digital Electric PH Meter LCD Tester Pocket Hydroponics & Aquarium Water Test Pen For Accurate Water Quality Measurement | Dynamicdeals
Inspire Uplift
Free shipping
50% off
$29.97
$59.94
Digital Electric PH Meter LCD Tester Pocket Hydroponics & Aquarium Water Test Pen For Accurate Water Quality Measurement | Dynamicdeals
Inspire Uplift
$49.99
$54.99
Comprehensive 5-In-1 Water Quality Meter: Freshwater & Saltwater Testing For Pools, Spas & Aquariums
Tilswall US
$49.99
$54.99
Comprehensive 5-In-1 Water Quality Meter: Freshwater & Saltwater Testing For Pools, Spas & Aquariums
Tilswall US
$27.99
5-In-1 Digital Ph Meter For Water Quality Testing In Hydroponics And Aquariums
Evalm
$27.99
5-In-1 Digital Ph Meter For Water Quality Testing In Hydroponics And Aquariums
Evalm
$54.00
Waterproof EC / TDS / Temperature Combo Meter COM-100
Cannon Water Technology
$54.00
Waterproof EC / TDS / Temperature Combo Meter COM-100
Cannon Water Technology