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1-30L/min Water Flow Sensor 1/2" YF-S201

Code: G1/2"


  • Mainly used for water testing, water cooling system
  • Application: Water heaters, credit card machines, water vending machine, flow measurement device
  • The impeller is inlaid with stainless steel beads for wear resistance.
  • The structure of the seal ring adopts force from top to bottom to prevent water leakage
  • The Hall element is imported, the line is filled with a waterproof seal rubber ring, and the inlet waterproof silicone strengthens the waterproof
  • All raw materials meet ROHS standards
  • High amplitude: ≥ 4.6V
  • Low amplitude: ≤ 0.5V
  • Electric strength: 1250V/min
  • Insulation resistance: ≥ 100MΩ
  • Hydrostatic pressure testing: ≤ 2.0Mpa

  • Weight: 0.050 Kgs
Price excl. tax: 24.00лв.
Price inc. tax: 28.80лв.

We have 50 in stock


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Sensor Type: Hall effect
Working Voltage: 5 to 18V DC (min tested working voltage 4.5V)
Max current draw: 15mA @ 5V
Output Type: 5V TTL
Working Flow Rate: 1 to 30 Liters/Minute
Working Temperature range: -25 to +80℃
Working Humidity Range: 35%-80% RH
Accuracy: ±10%
Maximum water pressure: 2.0 MPa
Output duty cycle: 50% +-10%
Output rise time: 0.04us
Output fall time: 0.18us
Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min)
Pulses per Liter: 450
Durability: minimum 300,000 cycles
Cable length: 15cm
1/2" nominal pipe connections, 0.78" outer diameter, 1/2" of thread
Size: 2.5" x 1.4" x 1.4"
External threads: 1/2" 
Outer diameter: 20mm 
Intake diameter: 9mm 
Outlet diameter: 12mm 
Package included: 1pc x Water Flow Sensor 
Note: Please allow 1-5mm difference due to manual measurement. 
Connection details:
Red wire : +5V
Black wire : GND
Yellow wire : PWM output.
File Info
YF-S201 [PDF, 48.11 KB]


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