FI 594 Flow Indicator, Controller, and Totalizer is a versatile solution designed for pulse output flow sensors such as paddle wheel sensors. Microcontroller-based electronics ensure accurate flow rate and total flow measurement. Programmable features including inline calibration, selectable units, and non-volatile EEPROM memory provide reliable performance even during power failures. This system is widely used in water, wastewater, chemical, petrochemical, agricultural, and cleaning applications.