Flow Sensor Measurement range, with adapter: 6.0...45.0 l/min Measuring range: 15...75.0 l/min Operating temperature: 0...+80 °C Output frequency: 25...225 Hz Connection: G1/2" Electrical connection: Cable, 60 cm Housing Material: Polypropylene (PP) Output: 0...4.5...24 VDC rectangular pulse, constant voltage, frequency dependent on flow rate Operating voltage: 4.5...24 VDC