1/8 inch Water Flow Sensor – YF-S401
1/8-inch Water flow sensor YF-S401 consists of a plastic valve body, a water rotor, and a hall effect sensor – when water flows through, the internal rotator will change its speed with different rate of flow and hall effect sensor outputs the corresponding pulse signal. Use with laser cutters or CNC to measure if and how much water is flowing through laser tube or CNC spindle for cooling.
Specifications:
Model: YF-S401
Working Voltage: DC 3.5V~24V
Maximum Working Current: 15mA @ 5V DC
Flow Rate Range: 0.3~6L/min.
Connection: 6mm (external diameter)
Inlet Water Pipe Diameter: 2.5-4mm
Load Capacity: ≤10mA (DC 5V)
Operating Temperature: ≤80℃
Liquid Temperature: ≤120℃
Operating Humidity: 35%-90%RH
Water Pressure: ≤2.0MPa
Storage Temperature: -25 to + 80℃
Storage Humidity: 25%-95%RH
Connections:
Red: Power In
Black: Ground
Yellow: Signal Output
Package Include:
1 x 1/8-inch Water Flow Sensor – YF-S401
Technical Specifications
| Model | YF-S401 |
|---|---|
| Display Size | 8" |
| SKU | AI0190 |
| Weight | 0.03 kg |
| Availability | In Stock |
Applications & Use Cases
The 1/8 inch Water Flow Sensor - YF-S401 is a versatile flow used across a wide range of applications including water quality monitoring, hydroponics, aquariums, industrial water treatment, and smart irrigation.
Common use cases:
- Measuring TDS in a hydroponic nutrient solution
- Monitoring pH in an aquarium
- Tracking water flow in an irrigation system
This product is ideal for aquaculture professionals, hydroponic growers, and environmental engineers.
Technical Tip: Calibrate pH and TDS sensors regularly with standard solutions. Keep probe tips clean and submerged when not in use.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Sanya Singh (verified owner) –
Very satisfied with this 1/8 inch Water Flow Sensor -. Library support is good and it’s easy to interface.
Deepak Chopra –
Decent 1/8 inch Water Flow Sensor – for the price. Requires proper wiring but works well once set up.
Hemant Kapoor (verified owner) –
Very satisfied with this 1/8 inch Water Flow Sensor -. Library support is good and it’s easy to interface.
Ishaan Naidu (verified owner) –
Love this 1/8 inch Water Flow Sensor -. Response time is fast and readings are stable.
Abhishek Thakur (verified owner) –
Great quality 1/8 inch Water Flow Sensor -. Calibrated it easily and the accuracy is impressive.
Darshan Khanna (verified owner) –
This 1/8 inch Water Flow Sensor – is a must-have for sensor projects. Plug and play with Arduino.
Swati Malhotra (verified owner) –
Excellent sensitivity and range on this 1/8 inch Water Flow Sensor -. Works better than I expected.
Ashwin Khurana (verified owner) –
Decent 1/8 inch Water Flow Sensor – for the price. Requires proper wiring but works well once set up.
Chetan Khurana (verified owner) –
Superb 1/8 inch Water Flow Sensor -! Using it in my environmental monitoring system. Very reliable data.
Shruti Rathore (verified owner) –
Nice 1/8 inch Water Flow Sensor -. Readings are mostly accurate. Good enough for my hobby project.
Rohit Dave (verified owner) –
Nice 1/8 inch Water Flow Sensor -. Readings are mostly accurate. Good enough for my hobby project.
Amit Joshi (verified owner) –
Good quality 1/8 inch Water Flow Sensor -. Some variation in readings but within acceptable range.
Kapil Garg –
This 1/8 inch Water Flow Sensor – is excellent for the price. My data logging project is working perfectly now.
Naveen Chatterjee (verified owner) –
Love this 1/8 inch Water Flow Sensor -. Response time is fast and readings are stable.
Isha Yadav –
Average 1/8 inch Water Flow Sensor -. Readings fluctuate a bit. Works for rough measurements.
Nihal Attar (verified owner) –
Awesome and quick delivery next day
Anand Khurana –
Nice 1/8 inch Water Flow Sensor -. Readings are mostly accurate. Good enough for my hobby project.
Aisha Bhandari (verified owner) –
Perfect for my weather station. This 1/8 inch Water Flow Sensor – gives consistent readings day and night.
Tushar Kumar –
Great quality 1/8 inch Water Flow Sensor -. Calibrated it easily and the accuracy is impressive.