Neptune Systems Flow Sensors (1/2", 1", 2") Accurate Water Flow Monitoring for Your Apex Aquarium System The Neptune Systems Flow Sensors are precision inline sensors designed to measure real-time water flow in your aquarium plumbing system. When connected to the Neptune FMM (Fluid Monitoring Module), these sensors provide accurate flow rate data, allowing you to monitor return pumps, reactors, filtration systems, and closed-loop circulation with confidence. Available in 1/2", 1", and 2" pipe sizes, these sensors integrate seamlessly into your plumbing system to ensure optimal performance and early detection of flow issues such as clogs, pump failure, or reduced efficiency. Available Sizes Size Best Use Case 1/2" Flow Sensor Small systems, reactors, dosing lines 1" Flow Sensor Standard return pumps and reef systems 2" Flow Sensor High-flow systems and large marine setups Key Features Genuine Neptune Systems flow monitoring accessory Inline design for accurate real-time flow measurement Connects directly to the FMM (Fluid Monitoring Module) Measures water flow rate in gallons or liters per hour (configurable in Apex Fusion) High-precision sensor for reliable long-term performance Durable, aquarium-safe materials Suitable for both freshwater and saltwater systems
