GPI 113255-1, 01A31GM, 3 - 30 GPM (10 - 100 LPM) flow range, 1 in NPT thread connection, nylon rotor, ceramic bearings, tungsten carbide shaft, 4-digit LCD display, 14 to 130F (-10 to 54C) operating temperature, Aluminum Housing, Digital Display, Two alkaline AAA batteries, Turbine, 300 PSI (20.68 bar) max. pressure,  Accuracy +/  2.5% of reading