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YF-S401 Water Flow Sensor 0.3-6L/min

Marsoni M251S
Sale price$125.00
Pay 4 payments of $31.25 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
YF-S401 Water Flow Sensor 0.3-6L/minWater flow sensor 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 Working Voltage: DC 5V~24V Maximum Working Current: 15mA @ 5V DC
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4.1 ★★★★★
Based on 2237 reviews
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J
Verified Purchase
John
New York, US
★★★★★ 5
Great filter
Size: 7.5" x 8.7" x 1.4"
Fits perfectly in my vehicle. Installed it myself
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026
T
Verified Purchase
T.C.
Lake Worth, US
★★★★★ 5
Excellent filter
Size: 7.5" x 8.7" x 1.4"
Perfect fit, installed easily and quickly, airflow arrow was provided, and product was well-made with high-quality materials. Box had a hole, but the filter was in a sealed plastic bag and was undamaged.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 25, 2025
S
Verified Purchase
scott laser
Charlottesville, US
★★★★★ 5
Works as expected in polluted phoenix AZ
Size: 7.5" x 8.7" x 1.4"
these work great for me and the dealr charges $60 to replace one
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
C
Verified Purchase
Cesar S.
Natrona Heights, US
★★★★★ 4
Needs modification to fit Lexus TX 350
Size: 7.5" x 8.7" x 1.4"
Does not have a proper fit on a 2024 Lexus TX 350 without some minor modification. The filter casing has a guide that it's supposed fall into one of the pleats like a notch, however, notice this filter has the white strips which I guess are added structural support. I simply cut the 2 strips on the pleat the guide falls into. The filter will not fall apart by doing this. It's a minor inconvenience that can be easily corrected yourself or simply find another filter that does not have anything blocking the pleats the entire width of the filter.
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Reviewed in the United States on January 26, 2026
A
Verified Purchase
Apacs1
Natrona Heights, US
★★★★★ 5
Fits perfectly
Size: 7.5" x 8.7" x 1.4"
easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025

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