In stock
10+ Available
Qty Discount available
  • $6.56 /2pcs+
  • $6.21 /10pcs+
  • $5.87 /50pcs+

Water flow sensor consists of a copper 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.

Life is longer than plastic body.


• Compact, Easy to Install

• High Sealing Performance

• High Quality Hall Effect Sensor

• RoHS Compliant


• Mini. Wokring Voltage: DC 4.5V

• Max. Working Current: 15mA (DC 5V)

• Working Voltage: DC 5V~15V

• Flow Rate Range: 1~30L/min

• Frequency: F=6.6*Q(Q=L/MIN)

• Load Capacity: ≤10mA (DC 5V)

• Operating Temperature: ≤80℃

• Liquid Temperature: ≤120℃

• Operating Humidity: 35%~90%RH

• Water Pressure: ≤1.75MPa

• Storage Temperature: -25~+ 80℃

• Storage Humidity: 25%~95%RH

Part List

1 x YF-B6 water flow sensor

Technical details

Dimensions 0mm x0mm x0mm
Weight G.W 152g
Battery Exclude
Mini. Wokring Voltage DC 4.5V
Max. Working Current 15mA (DC 5V)
Working Voltage DC 5V~15V
Flow Rate Range 1~30L/min
Frequency F=6.6*Q(Q=L/MIN)
Load Capacity ≤10mA (DC 5V)
Operating Temperature ≤80℃
Liquid Temperature ≤120℃
Operating Humidity 35%~90%RH
Water Pressure ≤1.75MPa
Storage Temperature -25~+ 80℃
Storage Humidity 25%~95%RH

Part List

YF-B6 water flow sensor 1


HSCODE 9026100000
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Product Faqs

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  • Question by: admin on 2018-12-18 02:30:22

    Hi jeppe~ Actually they are almost the same,the only difference is that B6 is 10cm longer than B5.Of cause,B6 is heavier than B5,Regards.

    Answer by: admin on 2018-12-18 02:30:22
  • Question by: admin on 2018-12-18 02:24:12

    Hi there, we only have the Chinese version this moment. here is the link, **https://github.com/SeeedDocument/forum_doc/raw/master/reg/%E6%B5%81%E9%87%8F%E8%AE%A1YF-B6%E8%A7%84%E6%A0%BC%E4%B9%A6.doc** thanks.

    Answer by: admin on 2018-12-18 02:24:12