Voltage 5-12V DC Max. working current 25mA (DC12V)/15mA (DC5V) Circuit load ≤15mA (DC12V RPLUS=1kΩ) ≤10mA (DC5V RPLUS=1kΩ) On flow ≤1.5L/min Flow pulse characteristics f=8.1Q-3(f:Hz,Q:L/min) Precision 3-17L/min ±10% Waterproof permitted ≤1.75Mpa