YFS403 3/4 inch 5-18V Water Flow Sensor Flowmeter 1- 30L/Min mainly consist of plastic valve, water flow rotor assembly and hall current sensor. The rotation of the magnetic rotor and the rotating speed change with the change of the flow rate, and the output of the Holzer sensor is corresponding to the pulse Signal, feedback to the controller, by the controller to determine the size of the water flow, control.
This Water Flow Sensor is installed in the hot water inlet end for detecting water flow. When water through the flow rotor assembly, magnetic rotor will rotate and Speed will change as the flow change. Hall current sensor output corresponding pulse signal and feedback to controller, then the controller will control the flow. Can be used for water heaters, credit card machines, water vending machine, flow measurement device.
Features:
- Light weight, small size, easy to install.
- Inlaid with stainless steel impeller shaft, durable wearable.
- Seal ring with the upper and lower force structure never leaks.
- Non-violent shock, and chemical erosion.
- Non-throwing or hitting.
- Mounted vertically, should not exceed 5 degrees inclination.
- Temperature of medium should not exceed 120 ℃.
Specifications:
- Working voltage: 5 – 18 V
- Load capacity: ≤ 10 mA
- Input Diameter: Outside-26mm, Inside-12 mm
- Output Diameter: Outside-26mm, Inside-14mm
- Pressure: ≤1.2MPa
- Working humidity range: 35%-90% RH
- Flow range: 1-30L / min
- Width (mm): 62
- Height (mm): 41
- Weight (g): 35
Wire Connections:
- Red: Positive(+)
- Yellow: Signal output.
- Black: Negative(-)
Product Applications
- This product can be used in water heating systems, automatic water dispenser and other flow metering equipment.
Package Includes:
- 1 x YFS403 5-18V Water Flow Sensor Water Flow meter G3/4 1- 30L/Min







Mohan RatiRam (verified owner) –
Good quality