DFRobot Gravity flow sensor 1/8 inch

The Gravity 1/8 inch water flow sensor from DFRobot measures the speed of a liquid flowing through it. The YF-S201 water flow sensor consists of a plastic valve body, flow rotor and Hall effect sensor. It is normally used at the inlet to measure the flow rate. When liquid flows through the sensor, a magnetic rotor rotates and the speed of rotation changes with the flow rate. The Hall effect sensor then outputs a pulse width signal. Connect the sensor to a microcontroller and you can monitor several devices, such as a coffee machine, sprinkler or, in the case of a laser, the water cooling and regulate the water flow according to your needs!

Info:
Avoid contact of the sensor with corrosive chemicals
The sensor must be installed vertically, at an angle of no more than 5 degrees.
The temperature of the liquid should be below 100°C to prevent damage to the sensor.

Documentation:
DFRobot Wiki

Technical details:
Operating voltage: 5 to 12V DC
Inner diameter: 4mm
Outer diameter: 7mm
Water pressure resistant: <0.8 MPa
Water flow range: 0.3-6 L/min
Operating current: 15mA (DC 5V)
Insulation resistance: >100MΩ
Accuracy: +-5% (0.3 to 3L/min)
Output pulse high level: >4.7VDC (DC input voltage 5 V)
Output pulse low level: <0.5VDC (DC input voltage 5 V)
Output pulse ratio: 50% +-10%
Water flow formula: 1L = 5880 square waves
Environment: 35% ~ 90% RH (no frost)
Temperature range: 1°C to 100°C
Dimension: 58 x 35 x 26mm
Weight: 31g

Scope of delivery:
1x gravity flow sensor 1/8 inch.