Flow range:1-60L/min±1%
Minimum rated working voltage:DC4.5 5V-24V
Maximum current:15 mA(DC 5V)
Working voltage range:DC 5～18 V
Load capacity:≤10 mA(DC 5V)
Operating Temp:≤80℃,Operating humidity:35%～90%RH
Allow compression:Water pressure 1.75 Mpa below
Output pulse duty cycle of 50 ±10%
Output rise time 0.04μS
Output fall time 0.18μS
Storage Temperature:-25～+80℃
Storage humidity:25%～95%RH
Output Waveform:Square Wave,output pulse singal.
ROHS Compliant.
Cable length:15cm. - See more at: http://www.ewallpk.com/home/1274-g34-water-flow-sensor-switch-flow-meter-flowmeter-34-1-60l-min-.html#sthash.KQ8pWvO1.dpuf