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The SEA YFS403 3.5-24V Water Flow Sensor Flowmeter G3/4 1-30L/Min by sea is a value-for-money flow sensors designed for everyday users. It features Model No. / Name: Water Flow Sensor and Max Water Flow(L/min): 1 to 30.
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About This Product
The SEA YFS403 3.5-24V Water Flow Sensor Flowmeter G3/4 1-30L/Min by sea is a value-for-money flow sensors designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Model No. / Name: Water Flow Sensor
- Max Water Flow(L/min): 1 to 30
- Working water pressure(MPa): ≤1.2
- Operating Voltage (VDC): 3.5-24V — works with standard household power
- Load Capacity (Kg/Wheel): ≤ 10 mA
- Input Diameter (mm): 12 mm
- Output Diameter (mm): 26
- Operating humidity: 35%-90% RH
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Elecvora sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.
The YFS403 3.5-24V Water Flow Sensor mainly consists of a plastic valve, water flow rotor assembly, and a Holzer 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.
It is installed in the hot water inlet end for detecting water flow. When water through the flow rotor assembly, the magnetic rotor will rotate and Speed will change as the flow change. Hall current sensor output corresponding pulse signal and feedback to the controller, then the controller will control the flow. Can be used for water heaters, credit card machines, water vending machine, flow measurement device.
Wire Connections:- Red: Positive(+)
- Yellow: Signal output.
- Black: Negative(-)
Features:
- Lightweight, small size, easy to install.
- Inlaid with stainless steel impeller shaft, durable wearable.
- The 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.
- The temperature of the medium should not exceed 120 ℃.








