flowsensor flowmeter AICHI japan Connection : 1/2\ Flow range : 1-10 L/min Flow Pulse: F(Hz)=2.5ML/ P Max. Working Current : 15mA (DC5 V) Min. Working Voltage: DC 4.5V Working Voltage:DC 3.5V~12V Load Capacity: =10 mA (DC 5 V) Operating Working Temperature : -25 Degree centigrade to +70 Degree centigrade Accuracy :+- 1% Working environmental : milk , liquid, light oil, diesel Material : RoHs, no-toxic