Water-flow Sensor/Counter (G3/4)
            
            $9.95
            
        
         
            Water flow sensor/ counter (3/4")  
 
 Specification 
 Power: DC6-12V  (Red+ Black-)
Idle current draw: <10mA
 Output: DC5V 50% square pulse (Yellow) 
 Rate: 1-60L/min, +/-10% accuracy 
 Working Temp: -20 to 100'C 
 PSI: 1.75MPA (max) 
 Intake: 3/4" 
Wire length: 5"
 
 Note: 
 Pulse Frequency (Hz)  = 5.5*Q +/- 2% where Q = water flow (L/min) 
 Q(water flow)= Frequency/5.5