ZOOX FlowDian Flow Meter ZOOX FlowDian Flow Meter is a standalone inline water monitor that measures actual aquarium flow rate and water temperature without requiring a separate aquarium controller. It is useful for checking return pump output, reactor flow, manifold performance, plumbing losses, and temperature through the line so hobbyists can better understand how their aquarium system is actually running. Inline Flow and Temperature Monitoring for Aquarium Plumbing Return pumps and circulation equipment often perform differently once elbows, valves, reducers, vertical head pressure, manifolds, reactors, and plumbing length are added. FlowDian gives a direct inline reference reading, helping identify reduced flow, pump performance changes, blocked lines, dirty equipment, or plumbing adjustments that affect real-world water movement. Standalone Display Alarm and Calibration Features Measures actual water flow rate and water temperature through the installed line. Standalone operation does not require an aquarium controller. Local display shows flow and temperature information. Built-in buzzer alarm helps alert the user when monitored values move outside the set range. Customizable monitoring range supports different aquarium applications. Temperature calibration allows adjustment when needed. Can display US gallons and Fahrenheit or litres and Celsius at the touch of a button. Supports USART communication for automation projects. FlowDian Plumbing and Sensor Specifications Product type: Inline aquarium flow and temperature meter Plumbing size: 1" or 3/4" with included reducer Flow sensor range: 15-2000 gph Temperature sensor range: -32 to 140°F Accuracy: +/- 1% when calibrated Display refresh rate: Flow rate every 1 second and temperature every 2 seconds Pressure rating: Less than 0.3 MPA Protection: High-humidity proof Power: USB3.1 5V 1A Communication: Standalone operation with USART support Best Uses for Return Pumps Reactors and Manifolds Checking actual return pump flow after plumbing loss. Monitoring flow through aquarium manifolds and equipment branches. Setting or confirming reactor feed rates. Watching for flow reduction from clogged strainers, dirty tubing, blocked media, or pump wear. Comparing actual system flow against the pump manufacturer's rated output. Monitoring water temperature through the line where the FlowDian is installed. FlowDian Installation and Use Directions Install the FlowDian inline on compatible aquarium plumbing using the 1" connection or included 3/4" reducer as needed. Make sure the plumbing is clean, properly seated, and supported so the meter is not carrying pipe weight or strain. Use appropriate fittings, clamps, thread sealant, or plumbing methods for the specific installation style. Position the display where it can be read easily while keeping electrical connections protected from splashes, salt spray, and humidity. Connect to a suitable USB 5V 1A power source and create drip loops on all cords. Set the desired monitoring range and alarm values for the application. Use the temperature calibration function if the inline temperature needs to be matched against a trusted reference thermometer. Treat displayed flow as a reference value because actual readings can vary based on pump condition, fittings, pipe layout, restrictions, and installation method. Inspect the meter and plumbing periodically for leaks, salt creep, debris buildup, and reduced flow. What's Included ZOOX FlowDian Flow Meter Compact reducer for 3/4" plumbing use
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