Flowmeters of 2025
Best Choice1
DiivooDiivoo WiFi Water Flow Meter, Smart Flow Meter for Garden Hose with Usage Warning, ±5 High Accuracy and IP55 Waterproof, Measure Gallon/Liter Consumption for RV Water Tank Filling, Lawn Sprinkler 2PK
Main highlights- Wide-Range Measurement: Measure up to a maximum of 99999L so that you can accurately monitor high-volume water consumption without any limitations. Equipped with a large LCD screen display, allowing users to easily view real-time data at a glance
- Multi-Functional APP Interface: Through the APP, you can check the real-time flow rate, current water consumption, cumulative water consumption, and historical water consumption, making you fully aware of the water usage. In addition, you can view specific data such as hours, days, and months. The APP will present these data in the form of charts, easily helping you understand your water usage habits and optimize water efficiency
- Intelligent Remote Monitoring: DIIVOO smart flow meter uses RFID radio frequency identification protocol, with longer connection distance (60 meters), more stable connection, and stronger signal, so you don't have to worry about signal interruption issues during use. You can remotely monitor your home water usage anytime and anywhere
- High-Precision Measurement: Using a special turbine design, it is equipped with Hall sensors and IC chip groups, which are more accurate and precise in measurement, with a measurement error of less than 5%. After long-term use, you can manually calibrate to further improve the accuracy of the measurement
- Excessive Water Usage Alarm: Set time and water volume alerts in the APP, effectively avoiding water resource waste. With the smart flow meter, you can easily set water volume alarms, and once the water volume exceeds the set value, the system will automatically issue an alarm, reminding you to pay attention to water conservation
9.8Exceptional
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Value for Money2
DiivooDiivoo Water Flow Meter with 180° Removable Panel, 4 Measure Modes, ±5% High Accuracy and IP54, Measure Gallon/Liter Consumption and Flow Rate for Outdoor Garden Hose Watering, RV Water Tank Filling
9.9 Simple to use9.9 Precision9.9 clearly written9.7Exceptional
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3
HYYKJ-USUltrasonic Flow Meter TUF-2000B Liquid Water Flow Control Meter Flowmeter Counter LCD Display with TS-2 & TM-1 Clamp-on Transducers DN20-700mm
Main highlights- 【WIDE RANGE OF LIQUIDS】This flow meter can measure any liquid as long as it is relatively clear, such as water, seawater, sewage, oil, alcohol, etc. The external sensor probe has a built-in magnet that can be directly attached to the pipe. It is also equipped with an anti-interference shielding wire for more accurate measurement.
- 【THREE MEASURING METHODS】There are three measuring methods: wall mounting, insertion and inline. You can choose any way of measurement according to the environment. The various installation methods are very easy, and there is no need to cut off the flow and no pressure loss. It is widely applied in water supply, heating, water conservancy, chemical, pharmaceutical, energy, and other industries.
- 【LONG-TERM OUTDOOR INSTALLATION】High quality ultrasonic flow meter, equipped with ABS electrical interface, ABS material is not easy to age and crack. And the shell is IP67 and IP68 professional grade protective shell, which is dust-proof, water-proof, anti-corrosion, moisture-proof, and has a long service life, so it is suitable for long-term outdoor installation.
- 【HD DISPLAY & DATA STORAGE】The ultrasonic flow meter comes with high definition LCD display, can be displayed backlit for easy and intuitive reading. There is an inner SD card that regularly stores the pre-set results. Or you can choose not to record them. It’s optional.
- 【BI-DIRECTIONAL MEASUREMENT】With a dedicated bi-directional metering chip as the core, both the forward and the reverse can be measured without adjusting the machine. We use high-quality chips, making it stable and more accurate on flow monitoring. It is accurate, durable, and easy to install.
9.5Excellent
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4
GELTTULUGELTTULU Digital Ultrasonic Flow Meter TUF-2000B Liquid Flowmeter IP67 +TM-1 DN50-700mm
Main highlights- Velocity range: 0~±10m/s, Bi-directional measurement.
- Type of liquid: Single liquid can transmit ultrasound, such as water, sea water, sewage, oil, alcohol, etc.
- The measurement accuracy is high, almost not subject to the various parameters of the measured medium interference.
- Pipe size: DN50~DN700mm.
- Pipe material: Steel, stainless steel, cast iron, copper, PVC, aluminmum, glass steel, etc. Liner is allowed.
9.4Excellent
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5
RestmoRESTMO Water Flow Meter with Brass Inlet Metal Thread, Measure Gallon/Liter Consumption and Flow Rate for Outdoor Garden Hose Watering, RV Water Tank Filling, Lawn Sprinkler and Nozzle Sprayer
9.5 Easy installation9.3 Simple to use8.9 clearly written9.3Excellent
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6
Custom Molded ProductsBlue-White Flowmeter for 2 in. PVC Pipe, Horizontal Installation
Main highlights- Sold on Amazon
9.2Excellent
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7
AquacomputerAquacomputer G1/4 Next RGBpx Flow Sensor - High Flow (53293)
Main highlights- The sensor has ten integrated RGBpx LeDs to enable direct visual flow control.
- The high flow NeXT flow sensor from Aqua Computer is a fully integrated sensor for flow, temperature and coolant quality with USB interface, RGBpx lighting and OLeD display.
- The flow rate is measured by a rotor / impeller that is driven by the coolant flowing through.
- Dimensions: approx. 51 x 43 x 34 mm
- A very precise measuring system for the electrical conductivity of the coolant is integrated into the sensor.
9.0Excellent
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8
GRYVOZEGRYVOZE 3 Inch Digital Flow Meter, 21-264 GPM Inline NPT Thread Fuel Turbine Flowmeter with LCD Display for Water, Diesel, Gas Oil, Gasoline, and Other Liquids (5 Units: Gallon, QTS, PTS, L, m³)
Main highlights- Waterproof Rating - IPX4, not IPX8. Do not immerse this flowmeter in water, oil, or other liquids. It is not designed for submersion. To extend the lifespan of the built-in electronic board, please avoid splashing water on the dial.
- Versatile Unit Options - Switch between GAL(US Gallons), QTS, PTS, L, and m³ units to meet your specific measurement needs, offering flexibility and convenience. Flow range: 21-264 GPM(80-1000 LPM), working pressure: 6 Bar.
- Energy-Saving - The display screen of the digital water flow meter will turn off after 10 minutes of inactivity. It automatically turns on when there is liquid flow and can also be activated by pressing any key. Standby time: over 1 year.
- EMI Shielding: Our 3" flow meter is equipped with advanced electromagnetic interference protection, allowing for installation in close proximity to pumps or motors without interference.
- Durable Build - Crafted with an aluminum alloy casing and stainless steel turbine, this digital fuel meter is designed to withstand various environments and provide long-lasting performance. Working temperature: -10°C~80°C(14-176°F).
- Digital LCD Display - The clear LCD screen of the 3 inch flow meter shows real-time flow rates, accumulated totals, and instantaneous flow. It makes monitoring and recording your liquid usage easy. Single count range: 99999; Total cumulative count range: 29999999.
- Accurate Measurements - Our digital turbine flow meter provides precise readings with a high accuracy of ±1%, ensuring reliable data for liquids like water, diesel, gas oil, gasoline, kerosene, methanol, E15, and more.
8.7Very Good
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9
H2 Flow ControlsH2 Flow Controls FV-C Control FlowVis 2 x 2.5in. Complete Pool Flow Meter and Check Valve Black
Main highlights- Installs in-line, no saddle Clamps or flat rubber seals to corrode and no calibration is ever required
- Flowvis offers an average accuracy of 2.01% between 20-110 GPM and is NSF certified to 50 PSI
- Combined functionality of flow meter and check valve
- Clear, easy to read scale in GPM or optional LPM with key Velocity points
- Can be installed horizontally, vertically, upside down, and next to any elbow or other fitting
8.6Very Good
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10
FlowVisFlowVis FV-2 Flow Meter with Check Valve and Velocity Scale for 2" Schedule 40 Pipe. Scale in GPM.
Main highlights- ≥98.1% accuracy
- The first and only flow meter for pools and spas to be certified for outdoor use
- More NSF 50 certified models than any other brand of flow meter
- Manufactured in the USA
- Installs quickly and easily with no calibration required
- Installation flexibility; installs horizontally, vertically, or even upside-down
- Doubles as a check valve (1.5”, 2”, and 2.5” models)
- Clear, easy-to-read scale in GPM
- Can be installed with little-to-zero straight pipe requirements with no effect on accuracy
- 15-year design life, 3-year warranty
8.5Good
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