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Designed to bring simplicity to salinity testing during the any process, the HI98319 Marine Salinity Tester measures conductivity (EC) to deter...

Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity colorimeter bridges th...

REFILL KIT FOR HI772   Get accurate results for your saltwater aquarium with our simple handheld colorimeter.   Our alkalinity c...

  25 refills per pack  

HYDROS Control Power Supply (w/ Terminator) HYDROS Control Power SupplyAllows you to power the HYDROS Control.   This power adapter is NOT compatib...

Monitor Passing Water FlowThe HYDROS Flow Sensors are easy-to-install flow meters that communicate to the HYDROS app the flow rate of water passing...

CoralVue HYDROS 5-PIN System Command Bus Cable   This 1ft long HYDROS System Command Bus Cable allows HYDROS devices to communicate and even provid...

Monitor Passing Water FlowThe HYDROS Flow Sensors are easy-to-install flow meters that communicate to the HYDROS app the flow rate of water passing...

Monitor Passing Water FlowThe HYDROS Flow Sensors are easy-to-install flow meters that communicate to the HYDROS app the flow rate of water passing...

CoralVue HYDROS 5PIN System Command Bus Cable (DATA ONLY) This HYDROS System Command Bus DATA ONLY Cable allows HYDROS devices to communicate. This...

HYDROS Rope Leak Sensor Cable ONLY. Part of set

Monitor Passing Water FlowThe HYDROS Flow Sensors are easy-to-install flow meters that communicate to the HYDROS app the flow rate of water passing...

The HYDROS Powerstrip has 4 individual controlled 120v outlets and 4 x USB ports that are WiFi controllable using the free HYDROS app for Androi...

CoralVue HYDROS 5PIN System Command Bus Cable (DATA ONLY) This HYDROS System Command Bus DATA ONLY Cable allows HYDROS devices to communicate. This...

CoralVue HYDROS 5-PIN System Command Bus Cable   This 6ft long HYDROS System Command Bus Cable allows HYDROS devices to communicate and ...

HYDROS 9ft Drive 2-Pin Extension Cable   This 9ft long extension cable for HYDROS Drive Accessories for Control 2 and Control 4.

HYDROS 9ft Sense 4-Pin Extension Cable   This 9ft long extension cable for HYDROS Sense Accessories for Control 2 and Control 4.

The CoralVue HYDROS Auto Top-Off Kit Includes: HYDROS Triple Water Level Sensor (plugs into HYDROS Sense Port), HYDROS DC Micro Pump (plugs into HY...

HYDROS WiFi Fish Feeder is suitable for a variety of fish foods. Requires HYDROS Control and mobile device to operate sold separately.   ...

HYDROS Command Bus Terminator

Please note: CONTROL 2 ONLY - Nothing else is included.   About Control 2 HYDROS Control 2 is a small, general-purpose aquarium cont...

Achieve Ultimate Aquarium Control with the HYDROS Control 4 Starter Pack   This starter kit includes all essential equipment needed to m...

A Whole New Level of Aquarium Monitoring and Control The Control X10 is the ultimate HYDROS system controller with twin Drive ports, four Sense por...