This simple flow sensor is very similar to its big brother, the YF-S201, but has been optimized for lower flow rates and features a higher pulse per liter count. Inside the housing, a small pinwheel with an attached magnet is spun by passing water; as the magnet makes each revolution, a hall effect sensor inside the housing outputs a pulse on the yellow wire.
This sensor is best suited for flow rates between 0.3 and 6 liters per minute and outputs 5880 pulses per liter (approximately 1 pulse per 0.17mL). The sensor has a barbed 7mm connection point on each side with an inner diameter of 4mm.
- A 6 mm hose is recommended
- Avoid unit contact with corrosive chemicals
- The unit must be installed vertically, tilted no more than 5 degrees
- Liquid temperature should be less than 120 C to avoid damage to unit
Specifications:
- Model: YS-S401
- Working Voltage: DC 5V~12V
- Maximum Working Current: 15mA @ 5V DC
- Flow Rate Range: 0.3~6L/min
- Inlet Water Pipe Diameter: 4mm
- Load Capacity: ≤10mA (DC 5V)
- Water Pressure: ≤0.8MPa
Size:
Connections:
- Red: Power In
- Black: Ground
- Yellow: Signal Output
Applications:
- Water heaters
- Water vending machine
- Flow measurement device
- Automatic water dispenser
- Agriculture
- Food processing
- Coffee/Tea makers
- Water Management
