Best Flow Sensors. Reviews November, 2020

GREDIA 1/4" Water Flow Sensor Food-Grade Switch Hall Effect Flowmeter Fluid Meter Counter Connect Hosepipe 0.3-6L/min

Search only GREDIA brand name
GREDIA 1/4

Current price: 10.59 USD


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  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)

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DIGITEN G1/2" Water Flow Hall Sensor Switch Flow Meter Flowmeter Counter 1-30L/min

Search only DIGITEN brand name
DIGITEN G1/2

Current price: 8.99 USD


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Weight: 0.110231131 Pounds

  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect

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DIGITEN G3/4" Water Flow Hall Sensor Switch Flow Meter Flowmeter Counter 1-60L/min

Search only DIGITEN brand name
DIGITEN G3/4

Current price: 11.99 USD


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  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min

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Ecosmart FSA QC MEDLRG ECO 24 Replacement Part

Search only EcoSmart brand name
Ecosmart FSA QC MEDLRG ECO 24 Replacement Part

Current price: 18.84 USD


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Height: 1.5 Inches

Length: 3 Inches

Width: 2 Inches

  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36

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FLOMEC QS200-15, 1.5" Ultrasonic Flow Sensor for Turf Irrigation

Search only FLOMEC brand name
FLOMEC QS200-15, 1.5

Current price: 380 USD


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  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.

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6560-860, Sundance Spas - Hot Tub Flow Switch

Search only Sundance Spas brand name
6560-860, Sundance Spas - Hot Tub Flow Switch

Current price: 39.99 USD


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Height: 4 Inches

Length: 2 Inches

Width: 6 Inches

Warranty: Returns are not accepted on opened or used products and are subject to a 20% restocking fee.

  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.
  • Flow Switch used on Sundance Spas 800/850/880 Series Spas, 1999 - Present
  • 3/4" barb replaces part # 6560-858
  • Flow Switch with transparent tee 3/4" barb with a 3/8" barb off the side
  • Original Sundance Spa Parts. No generics
  • Sundance Spas Flow Switch with Bypass 6560-860

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DIGITEN G1/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter Connect Hose 0.3-6L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible

Search only DIGITEN brand name
DIGITEN G1/4

Current price: 9.49 USD


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  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.
  • Flow Switch used on Sundance Spas 800/850/880 Series Spas, 1999 - Present
  • 3/4" barb replaces part # 6560-858
  • Flow Switch with transparent tee 3/4" barb with a 3/8" barb off the side
  • Original Sundance Spa Parts. No generics
  • Sundance Spas Flow Switch with Bypass 6560-860
  • ★Sensor: Hall effect.
  • ★Application: Water heater thermostat, water purifier, boiler, water dispensers, coffee machines, smart card equipment, the boiler and so on.
  • ★Flow range: 0.3-6L/min, working voltage range:DC 5-18 V.
  • ★Suitable for 1/4" tube. Small size, easy to install, all materials are in line with ROHS testing standards.
  • ★Waterproof, heat resistance, pressure resistance, cold resistance.

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Ecosmart FSA NFSML ECO 8 Replacement Part

Search only EcoSmart brand name
Ecosmart FSA NFSML ECO 8 Replacement Part

Current price: 15.12 USD


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Height: 0.75 Inches

Length: 1.5 Inches

Width: 1.5 Inches

  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.
  • Flow Switch used on Sundance Spas 800/850/880 Series Spas, 1999 - Present
  • 3/4" barb replaces part # 6560-858
  • Flow Switch with transparent tee 3/4" barb with a 3/8" barb off the side
  • Original Sundance Spa Parts. No generics
  • Sundance Spas Flow Switch with Bypass 6560-860
  • ★Sensor: Hall effect.
  • ★Application: Water heater thermostat, water purifier, boiler, water dispensers, coffee machines, smart card equipment, the boiler and so on.
  • ★Flow range: 0.3-6L/min, working voltage range:DC 5-18 V.
  • ★Suitable for 1/4" tube. Small size, easy to install, all materials are in line with ROHS testing standards.
  • ★Waterproof, heat resistance, pressure resistance, cold resistance.
  • Country of Origin: China
  • Contact Eco Smart for questions
  • Models : ECO 8, ECO 11
  • Flow Sensor Assembly for ECO 8 ECO 11

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GREDIA Digital LCD Display Quantitative Controller Water Control + 2" Hall Effect Flow Sensor Flowmeter +24V Power

Search only GREDIA brand name
GREDIA Digital LCD Display Quantitative Controller Water Control + 2

Current price: 92.99 USD

Saving: $23.00 (20%)


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  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.
  • Flow Switch used on Sundance Spas 800/850/880 Series Spas, 1999 - Present
  • 3/4" barb replaces part # 6560-858
  • Flow Switch with transparent tee 3/4" barb with a 3/8" barb off the side
  • Original Sundance Spa Parts. No generics
  • Sundance Spas Flow Switch with Bypass 6560-860
  • ★Sensor: Hall effect.
  • ★Application: Water heater thermostat, water purifier, boiler, water dispensers, coffee machines, smart card equipment, the boiler and so on.
  • ★Flow range: 0.3-6L/min, working voltage range:DC 5-18 V.
  • ★Suitable for 1/4" tube. Small size, easy to install, all materials are in line with ROHS testing standards.
  • ★Waterproof, heat resistance, pressure resistance, cold resistance.
  • Country of Origin: China
  • Contact Eco Smart for questions
  • Models : ECO 8, ECO 11
  • Flow Sensor Assembly for ECO 8 ECO 11
  • It is suitable for chemical (pharmaceutical), pharmaceutical, food, small and medium-sized pure water machines, quantitative (batch) management control of gas and liquid flows in industry.
  • You can set the K constant for various flow meters.
  • Control quantitative flow
  • Monitor real-time flow rate and total flow number
  • Flow range:10-200L/min, Water Pressure: ≤1.75Mpa

More Info

DIGITEN G3/4" Water Flow Sensor, Food-Grade Hall Effect Sensor Flow Meter Flowmeter Counter 1-60L/min - Arduino, Raspberry Pi, and Reverse Osmosis Filter Compatible

Search only DIGITEN brand name
DIGITEN G3/4

Current price: 11.99 USD


Check price and availability


  • Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • Material: food grade plastic, all raw materials conform to the ROHS test standard
  • Working voltage: DC 5-24 V, F=(98*Q)±3%, Q=L/Min
  • Flow range:0.3-6L/min, Water Pressure: ≤0.8Mpa
  • Connect to a hosepipe whose inner diameter is about 5 to 7 mm( G1/4 inch connector)
  • Work for Android and PI system.
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-30L/min, Sensor:Hall effect
  • Sensor:Hall effect
  • Output Waveform:Square Wave,output pulse signal.
  • Working voltage range:DC 5-18 V
  • Allow compression:Water pressure 1.75 Mpa below
  • Flow range:1-60L/min
  • Country of Origin: China
  • Contact Eco smart for questions
  • ECO 18, ECO 24, ECO 27, ECO 36
  • Flow Sensor assembly for ECO 18 - ECO 36
  • INSTALLATION SIMPLIFIED: Power and signal LED lets you know the meter is properly wired. Drop in compatibility with 1.5" to 4" Data Industrial PVC tees. SIMPLE TWO WIRE: Functions with many common controller brands including Toro, Hunter, and Rainbird.
  • FLEXIBLE METERING SOLUTIONS: Fits great with turf irrigation systems, drip irrigation systems, golf course, orchard and commercial agriculture applications.
  • EXCLUSIVE ULTRASONIC INSERTION TECHNOLOGY: Has the best low flow capabilities in the turf irrigation market, detecting flows as low as 0.1 fps.
  • UNMATCHED DURABILITY: No mechanical parts means this ultrasonic water meter needs zero maintenance for winterization — just leave installed when blowing out lines
  • ULTIMATE TURF IRRIGATION FLOW SENSOR: Most accurate irrigation flow sensor in the industry with an unprecedented accuracy +/-2% of reading.
  • Flow Switch used on Sundance Spas 800/850/880 Series Spas, 1999 - Present
  • 3/4" barb replaces part # 6560-858
  • Flow Switch with transparent tee 3/4" barb with a 3/8" barb off the side
  • Original Sundance Spa Parts. No generics
  • Sundance Spas Flow Switch with Bypass 6560-860
  • ★Sensor: Hall effect.
  • ★Application: Water heater thermostat, water purifier, boiler, water dispensers, coffee machines, smart card equipment, the boiler and so on.
  • ★Flow range: 0.3-6L/min, working voltage range:DC 5-18 V.
  • ★Suitable for 1/4" tube. Small size, easy to install, all materials are in line with ROHS testing standards.
  • ★Waterproof, heat resistance, pressure resistance, cold resistance.
  • Country of Origin: China
  • Contact Eco Smart for questions
  • Models : ECO 8, ECO 11
  • Flow Sensor Assembly for ECO 8 ECO 11
  • It is suitable for chemical (pharmaceutical), pharmaceutical, food, small and medium-sized pure water machines, quantitative (batch) management control of gas and liquid flows in industry.
  • You can set the K constant for various flow meters.
  • Control quantitative flow
  • Monitor real-time flow rate and total flow number
  • Flow range:10-200L/min, Water Pressure: ≤1.75Mpa
  • ☺Wide application: It is mainly used in water heater, coffee machine, water purifier, drinking fountain, beverage machine, campus smart card equipment, etc.
  • ☺Hall effect sensor. Connect to G3/4 inch BSPT male thread, if used for NPT, need thread seal tape. Output waveform: square wave,output pulse signal.
  • ☺Cable length: 15cm. Flow range:1-60L/min, working voltage range:DC 5-18 V, allow compression:Water pressure 1.75 Mpa below.
  • ☺Material: food grade, all materials are in line with ROHS testing standards, can be used for potable water.
  • ☺Work for Arduino, Raspberry Pi, and Reverse Osmosis Filter. Small size, waterproof, easy to install, heat resistance, pressure resistance, cold resistance.

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