Neptune Flow Sensor - 1/4 Inch Neptune Flow Sensor - 1/4 Inch is a compact inline flow sensor for measuring low-flow water movement through 1/4 inch tubing when connected to a Neptune FMM module and compatible Apex system. Low-Flow Monitoring for 1/4 Inch Tubing This small flow sensor is useful for aquarium applications where flow is too low for larger return-pump sensors. It can be installed inline on 1/4 inch tubing and used to monitor flow through RODI feeds, calcium reactor feed lines, dosing-style water lines, or other low-flow aquarium accessory plumbing. Neptune 1/4 Inch Flow Sensor Features Inline flow sensor for 1/4 inch tubing Designed for use with the Neptune FMM Fluid Monitoring Module Reports flow data to a compatible Apex system through the FMM Push-fit connectors make tubing connection simple Useful for RODI inputs, calcium reactor feed lines, and other low-flow applications Helps identify blocked tubing, restricted flow, or unexpected flow loss Small format is practical for compact equipment areas and accessory lines 1/4 Inch Flow Sensor Specifications Product type: Inline aquarium flow sensor Model family: FS-25 Tubing size: 1/4 inch tubing Connection style: Push-fit connectors Flow range: 3-12 GPH Cable length: 3 m Required module: Neptune FMM Application: Low-flow aquarium accessory and tubing monitoring Compatibility and Use Notes This sensor requires a Neptune FMM module and compatible Apex system to report flow data. Match the sensor to the expected flow range of the line being monitored. Using a flow sensor outside its intended range can lead to poor or unreliable readings. Setup Directions Cut the 1/4 inch tubing at the desired monitoring point, insert the flow sensor using the push-fit connections, confirm the correct flow direction, and connect the sensor cable to an available FMM port. Configure the sensor in Apex Fusion, check for leaks, and verify readings under normal operating flow before setting alerts. What's Included One Neptune Flow Sensor - 1/4 Inch Integrated push-fit connectors
