Overview of this YFS401 Flowmeter Water Flow Sensor
Introducing Roboway water flow sensor YFS401 Flowmeter 0.3-6L/min3.5mm at the best price in India with Roboway. This sensor measures water flow accurately between 0.3 to 6 liters per minute and making it ideal for small to medium water flow applications. The sensor outputs pulses based on flow rate so you can easily read these pulses using a microcontroller like Arduino or Raspberry Pi.
Sensor  operates on 5V DC, which is safe and compatible with most electronic platforms. It has a 3.5mm water inlet/outlet diameter, suitable for small water pipes and tubing systems. Sensor helps in tracking water usage and preventing overflows, and automating water-based systems efficiently.
Features
Flow range: It measures water flow between 0.3 to 6 liters per minute.
Hall effect sensor: Converts water flow into accurate pulse signals.
Low operating voltage: Sensor works on 5V DC, perfect for Arduino and other microcontrollers.
Digital output: It sends pulses that are easy to read and convert into flow rate data.
Plastic body: Made from durable white plastic, resistant to rust and corrosion.
Stable performance: Module gives reliable readings even at low flow rates.
Specification
Model: YF-S402
Minimum Rated Working Voltage: DC 5~24V
Maximum Working Current: 15mA (at DC 5V)
Working Voltage Range: DC 5~18V
Load Capability: ≤10mA (DC 5V)
Working Temperature: ≤80°C
Humidity Range: 35%~90% RH (non-condensing)
Water Pressure: <1.75 Mpa
Storage Temperature: -25°C to 80°C
Storage Humidity: 25%~95% RH
Flow Range: 1 to 5 L/min
Frequency Output: 4380 pulses per 1 liter of water
Dimensions: 2.28 in x 1.38 in x 1.06 in (5.8 cm x 3.5 cm x 2.7 cm)
Thread Size: G1/4″
SKU: RW-1028
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