1" Flow Sensor FS100

The Neptune Systems FS-100 Flow Sensor delivers real-time flow monitoring for high-capacity aquarium systems up to 5,678 L/h. Engineered for 1" slip PVC plumbing, this precision instrument integrates seamlessly with your Apex Controller and FMM Module to track return pumps, external filtration, and closed-loop circuits. Detect equipment issues instantly through Apex Fusion alerts and graphing, preventing clogs and pump degradation before they compromise system stability. Includes BSPP-threaded sensor body with two PVC union adapters for straightforward Australian plumbing integration. Essential for serious aquarists managing high-flow setups who demand visibility into system performance.