Description
Water flow sensor consists of a plastic valve body, a water flow rotor and a Hall sensor.
When the water passes through the rotor, the magnetic rotor rotates and the rotational speed is changes with different flow rate. The Hall sensor outputs the corresponding pulse signal.
Specification
Min. Working Voltage
DC 4.5V
Max. Working Current
15mA @5V
Working Voltage
DC 5V ~ 18V
Flow Rate Range
1 ~ 30L/min
Output Signal
Square Wave
Operating Temperature
≤80°C
Operating Humidity
35% ~ 90% RH
Water Pressure
Under 1.75Mpa
Storage Temperature
-25°C ~ +80°C
Storage Humidity
25% ~ 95% RH
Pins Definition
Red Cable (IN)
Connect to DC4.5V ~ 18V
Yellow Cable (OUT)
Square Wave Output
Black Cable (GND)
Connect to ground
Tutorial
1. Wiki - Reading liquid flow rate with an Arduino.
