FSU50LF is a low-flow push-fit liquid flow detection switch designed for use in pressurized liquid systems. It features a moving magnet and fixed reed switch mechanism with a 5/8" push-fit connection, operating at pressures up to 10 bar and temperatures from -20°C to +85°C (-4°F to +185°F). The switch has a must-operate flow rate of 0.24 US gal/min (0.9 liters/min) and a must-release flow rate of 0.07 US gal/min (0.25 liters/min), with electrical ratings of 240V AC maximum switching voltage and 0.6A maximum switching current. The device is constructed from NSF-approved acetal material with a 10-inch PVC-insulated cable and is NSF 61 approved, making it suitable for potable water and liquid handling applications where reliable flow detection is required.