Technical DocumentationFT-110 Turbine Sensor: 0.26–4 GPM Output Specs7/22/2025For 0.26-4 GPM P/Ns 173934-C, 173934-D, 244424-C, 244424-D, 173939-C, 173939-Dft-110-.26-4-gpm-frequency-output.pdf (gemssensors.com)