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Shop All Controllers & Testing

Controllers & Testing Equipment allow convenient measurement of important aquarium parameters. Choose from our great selection to help simplify maintenance of freshwater or saltwater aquariums. High-tech digital controllers and monitors boast precision lab-grade quality to streamline testing and monitoring of vital aquarium water parameters.
81 results
Hanna Marine Salinity Tester Hanna Marine Salinity Tester
Starting at $69.00
IN STOCK
ICP Water Analysis ICP Water Analysis
Starting at $29.95
IN STOCK
Hydros WaveEngine Hydros WaveEngine
Starting at $299.99
IN STOCK
CoralVue Hydros Pump Adapters CoralVue Hydros Pump Adapters
Starting at $11.99
IN STOCK
Hydros 0-10V Quad WE Pump Adapter Hydros 0-10V Quad WE Pump Adapter
Starting at $12.99
IN STOCK
Hydros WaveEngine APX Link Hydros WaveEngine APX Link
Starting at $12.99
IN STOCK
API Ammonia Test Kit API Ammonia Test Kit
Starting at $12.99
IN STOCK
API Nitrate Test Kit API Nitrate Test Kit
Starting at $11.59
IN STOCK
Hanna Rinse Solution Hanna Rinse Solution
Starting at $1.00
IN STOCK
Hanna Electrode Storage Solution Hanna Electrode Storage Solution
Starting at $12.00
IN STOCK
EcoTech Marine Versa Tubing EcoTech Marine Versa Tubing
Starting at $9.00
IN STOCK
Red Sea Seawater Refractometer Red Sea Seawater Refractometer
Starting at $65.00
IN STOCK
Instant Ocean Hydrometer Instant Ocean Hydrometer
Starting at $9.99
IN STOCK
Seachem Ammonia Alert Device Seachem Ammonia Alert Device
Starting at $7.14
IN STOCK
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