Energy meters, SonoSensor 30, 25 mm, qp [m³/h]: 3.5, Heating, Battery 1 A-cell, 2 pulse output

Energy meters, SonoSensor 30, 40 mm, qp [m³/h]: 10.0, Heating, Battery 1 A-cell, 2 pulse output

Energy meters, SonoSensor 30, 65 mm, qp [m³/h]: 25.0, Heating, Battery 1 A-cell, 2 pulse output

Energy meters, SonoSensor 30, 80 mm, qp [m³/h]: 40.0, Heating, Battery 1 A-cell, 2 pulse output