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M11*1.25 Water Flow Sensor - YF-S402


Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor

Out of stock
  • 10+: $8.07


Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse signal. This one is suitable to detect flow in water dispenser or coffee machine.


We have a comprehensive line of water flow sensors in different diameters. Check them out to find the one that meets your need most.



  • Compact, Easy to Install

  • High Sealing Performance

  • High Quality Hall Effect Sensor

  • RoHS Compliant




TypeDimensions(DN)Working VoltageFlow Rate RangeLengthMale & FemaleLength of ThreadMaterial
YF-B1 DN15 5V~15V(DC) 1~25L/min 44mm Double Male 10mm Copper
YF-B2 DN15 5V~15V(DC) 1~25L/min 50mm Male in Female out 10mm Copper
YF-B3 DN15 5V~15V(DC) 1~25L/min 66mm Double Male 18mm Copper
YF-B4 DN15 5V~15V(DC) 1~25L/min 66mm Male in Female out 10mm Copper
YF-B5 DN20 5V~15V(DC) 1~30L/min 50mm Double Male 10mm Copper
YF-B6 DN20 5V~15V(DC) 1~30L/min 60mm Double Male 11mm Copper
YF-B7 DN15 5V~15V(DC) 1~25L/min 66mm Double Male 10mm Copper
G1&2 DN15 5V~24V(DC) 1~30L/min Double Male Plastic
G3&4 DN20 5V~24V(DC) 1~60L/min Double Male Plastic
G1&2 DN15 5V~24V(DC) 1~30L/min 60mm Double Male 13mm Plastic
G1&8 - 5V~24V(DC) 0.3~6L/min - - - Plastic
M11*1.25 - 5V~24V(DC) 0.3~6L/min - - - Plastic

Technical details

Dimensions 0mm x0mm x0mm
Weight G.W 31g
Battery Exclude
Mini. Wokring Voltage 4.5V (DC)
Max. Working Current 15mA @ 5V DC
Working Voltage 5V ~ 24V (DC)
Flow Rate Range 0.3 ~ 6L/min
Load Capacity ≤ 10mA (DC 5V)
Operating Temperature ≤ 80℃
Liquid Temperature ≤ 120℃
Operating Humidity 35% ~ 90%RH
Water Pressure ≤ 0.8MPa
Storage Temperature -25 ~ +80℃
Storage Humidity 25% ~ 95%RH
Thread size M11*1.25

Part List

M11*1.25 Water Flow Sensor 1


HSCODE 9026100000
USHSCODE 9026104000
UPC 841454116127
EUHSCODE 9013101000
CE 1
EU DoC 1
RoHS 1
UK DoC 1



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