Top 10 Best flow sensors

flow sensors
Discover our expert selection of the 10 best Fashion in 2025. Prices from 8.99 USD to 20.99 USD. Regularly updated buying guide.
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JESSINIE - JESSINIE 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min - -10%
#1
Best Choice
NEW
Prime -10% In Stock

Prime

  • The flow sensor mainly consists of a plastic valve body, a water flow rotor assembly, and a Hall sensor.
  • The product has a lightweight and flexible appearance, small size, and is easy to install. The impeller is internally inlaid with stainless steel beads, which is wear-resistant. Design of lines and isolation from water.
  • Valve body is made of transparent material to facilitate observation of water flow and rotor conditions. All raw materials meet testing standards.
D 40.0 /100
€8.96 9.95 EUR
Save 10%
🥇 View #1 on Amazon
GREDIA - GREDIA 1/4" Quick Connect Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 0.3-6L/min
#2
Top Pick
NEW
Prime In Stock

Prime

  • Connect to a G1/4 inch tube, quick connector, hall effect
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Working voltage: DC 5-24 V, F=(38*Q)±3%, Q=L/Min
D 40.0 /100
GREDIA - GREDIA 1/2" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-30L/min
#3
Top Pick
NEW
Prime In Stock

Prime

  • Connect to G1/2 inch BSPT male thread, hall effect
  • Flow range:1-30L/min, Water Pressure: ≤1.75Mpa
  • Working voltage: DC 5-24 V, F=(7.5*Q)±2%, Q=L/Min
D 40.0 /100
GREDIA - GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min
#4
NEW
Prime In Stock

Prime

  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Flow range: 0.5-3L/min, Water Pressure: ≤0.8Mpa
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
D 40.0 /100
GREDIA - GREDIA 1" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min (Pack of 2)
#5
NEW
Prime In Stock

Prime

  • Connect to 1 inch male thread, hall effect, comes with 2 pieces
  • Flow range:1-60L/min, Water Pressure: ≤1.2Mpa
  • Working voltage: DC 5-24 V, F=(5.5*Q)±2%, Q=L/Min
D 40.0 /100
DIGITEN - DIGITEN FS-C02 G3/4" BSP Male Thread Brass Water Flow Switch 1-30L/min, 0-2A/ 0-220V(AC or DC)
#6
NEW
Prime In Stock

Prime

  • 🌟🌊【Safe and Reliable】This flow sensor switch is made of brass, all materials are in line with ROHS testing standards. It's a safety device that shuts off the current to the device (heaters, pumps, etc.) when it senses no water flow.When connecting the load, please add a relay.
  • 🌟💧【Thread type: 3/4" BSP Male Thread】 The flow sensor `s male thread external diameter: 25.85mm.It is fit in NPT Thread if you connect them with teflon
  • 🌟🌊 【Easy to install 】Our flow sensor is waterproof, heat resistance, pressurresistance, cold resistance, small size, stable and reliable.
D 40.0 /100
€14.99
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briidea - briidea Flow Switch, Flow Sensor with Tee for Hayward Salt System, Compatible with Hayward Goldline System - -32%
#7
Best Deal
NEW
Prime -32% In Stock

-32% • Prime

  • COMPATIBLE WITH ANY HAYWARD SYSTEM: Briidea flow switch can be compatible with any Hayward Goldline Salt Chlorine Generator System, including the Aqua Trol using a T-5 size salt cell
  • COMPATIBLE MODELS: Compatible with Hayward Pro Logic, Mineral Springs MS10/ MS11, Aqua Logic, Swimpure +, H-40, Aqua Plus, Aqua Rite XL, Aqua Rite Pro, Aqua Rite
  • SAFE PROTECTION: The flow switch can monitor water flow rate in your saltwater system, make sure chlorine gas doesn't build up when there's no water flow, protect your pool and equipment from any harm
D 40.0 /100
$16.99 24.99 USD
Save 32%
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GREDIA - GREDIA 3/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter 1-60L/min (Pack of 2)
#8
NEW
Prime In Stock

Prime

  • Connect to G3/4 inch male thread, hall effect, comes with 2 pieces
  • Flow range:1-60L/min, Water Pressure: ≤1.2Mpa
  • Working voltage: DC 5-24 V, F=(5.5*Q)±2%, Q=L/Min
D 40.0 /100
GREDIA - GREDIA G1" Male Thread Brass Water Flow Sensor Switch Hall Effect Liquid Flowmeter Fluidmeter Counter BSP 2-50L/Min(58mm in Total Length)
#9
NEW
Prime In Stock

Prime

  • Connection size: G1 inch BSPT male thread, 58mm, hall effect
  • Flow range: 2-50L/Min, Water Pressure: ≤1.75Mpa, Working voltage range: DC5~15V
  • F = (7.5* Q-4) ± 5%, Q=L/Min, error: ± 5%, Operating temperature range: 0-80℃ (0-176°F)
D 40.0 /100
€19.99
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Dimakung - FSA QC MEDLRG Tankless Water Heater Flow Sensor Fits for Ecosmart ECO 18, ECO 24, ECO 27 & ECO 36 Hot Water Heater Replacement Parts
#10
NEW
Prime In Stock

Prime

  • Water Heater Flow Sensor: FSA QC MEDLRG flow sensor can help activate tankless electric water heater for ecosmart to heat hot water as it flows through. If the LED display not illuminated while water is running, then you need to replace it with a new water flow sensor for ecosmart.
  • Compatibility: Tankless hot water heater flow sensor is compatible with Ecosmart ECO 18 , ECO 24, ECO 27 and ECO 36 models water heater. Flow sensor for ecosmart also compatible with Rheem Retex-27 hot water heater.
  • Design Excellence: The circuit board design of flow meter for ecosmart is very precise and ensures that the sensor accurately measures the water flow and activates the water heater to heat the hot water. Not only leak proof, but also works very well.
D 40.0 /100

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Based on our analysis, the #1 product on our list offers the best value with a rating of 0.0/5.
Prices range from 8.99 EUR to 20.99 EUR, offering options for every budget.
This selection is regularly updated to ensure you get the best deals and top-rated products.
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JESSINIE 2Pcs YF-S201C DC3.5-24V G1/2" Transparent Flow Sensor Turbine Flowmeter Water Flow Sensor Transparent Water Flow Meter YF-S201C Range 1-30L/min
🥇 #1

JESSINIE 2Pcs YF-S201C DC3.5-24V G1/2" T...

8.96 EUR
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