1/4" Flow Sensor FS25

Neptune Systems FS-25 Flow Sensor – Precision Flow Monitoring for Your Apex System Track water movement with confidence using this compact ¼" flow sensor designed for Neptune Systems setups. The FS-25 measures flow rates between 11–45 L/h, making it perfect for dosing systems, RO/DI lines, and return plumbing in nano aquariums. Simply connect to your FMM Module and Apex Controller to access real-time flow data through Apex Fusion, enabling you to detect clogs, verify equipment performance, and fine-tune your system's operation. The push-connect design fits standard ¼" tubing and installs inline with minimal fuss. Ideal for monitoring return pumps, reactors, and nutrient delivery systems. Requires FMM Module and Apex Controller (A2 or A3 Series); tubing and adapters sold separately.