Product Description
Nylon Water Flow Sensor YF-S201 Hall Effect G1/2 1/2" 3/4" 1" 2" Liquid Flow Meter for Irrigation Hot Water Heater
Nylon Water Flow Sensor YF-S201 Hall Effect G1/2 1/2" 3/4" 1" 2" Liquid Flow Meter for Irrigation Hot Water Heater
1. NOTE:
Default
1. Voltage: DC 3.5~24V for all models.
2.Pressure Limit:≤1.75MPA.
3.Connection Types: G1/2, G3/4, G1, G1 1/4, G1 1/2, G2.
4. IFlow Range: From 1L/MIN to 200L/MIN, depending on the model:
YF-S201: 1-30 L/min
YF-S201B: 1-30 L/min
YF-S201C: 1-25 L/min
FS200A: 2-30 L/min
FS300A: 2-60 L/min
YF-S403: 1-30 L/min
FS400A: 2-60 L/min
YF-G1: 2-100 L/min
YF-DN32: 1-120 L/min
YF-DN40: 5-150 L/min
YF-DN50: 10-200 L/min
5. Inner/Outer Diameters: Vary by model, from 10.9mm/20mm (DN15) to 46mm/58.8mm (DN50).
6. Optional Configurations: Inlet/outlet diameter adjustments and thread customization are available upon request.
For customization, please contact us.
2.Parameters
Parameter | Specification |
Operating Voltage | DC 3.5V ~ 24V |
Water Pressure Resistance | ≤1.75MPa |
Temperature Range | -20°C ~ 80°C |
Pulse Output (High) | >DC 4.7V (at DC 5V input) |
Pulse Output (Low) | |
Insulation Resistance | >100MΩ |
Sealing Performance | 1.7MPa water pressure test, no leakage |
3. Key Features
Accurate Flow Measurement – Generates precise pulse signals to monitor water flow.
High Durability – Resistant to high pressure (≤1.75MPa) and temperature (-20°C ~ 80°C).
ROHS-Compliant Materials – Safe and eco-friendly construction.
Easy Installation – Compact design for various applications.
Magnetic Rotor System – Ensures stable signal output for real-time monitoring.
4.Applications
Water Heaters – Measures inlet water flow for efficient heating control.
Campus Drinking Machines – Ensures precise water dispensing.
Vending Water Dispensers – Helps track and regulate water usage.
Campus Card Payment Machines – Integrated with smart water metering systems.























5. FAQs
Q1: Can this sensor be used outdoors?
A1: No, it should be installed indoors or inside equipment to avoid exposure to moisture, high temperatures, or vibrations.
Q2: Does the sensor affect water quality?
A2: No, it is made of ROHS-compliant materials, ensuring safe and non-toxic operation.
Q3: How does the sensor output data?
A3: The Hall sensor generates pulse signals that correspond to the water flow rate, which can be processed by a controller.

About Prime Living
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Shipping policy
We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.
We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.
. Please provide a physical address, as we do not ship to P.O. Boxes.
Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.