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Our goal is to provide a variety of choices for any flow measurement application at industry leading prices.

Standard Transit-Time Ultrasonic Flow Meter


SmartMeasurement’s Alsonic FX transit-time ultrasonic flow meter is a low cost, fixed-mount liquid flow rate measurement solution, with clamp on transducers for non-invasive measurement. This microprocessor-based, user-friendly, field-programmable clamp on flow meter creates no interruption of the process flow.

This versatile ultrasonic flow meter is available in a variety of configurations to meet the needs of a wide range of applications. Available transducer types include clamp on, inline, and insertion. Wall-mount, panel-mount, pipe mounted, and compact din-rail mounted display types are also available. Other optional features include pulse, 0-20 mA and 4-20 mA outputs, RS-232 communication, user-selectable engineering units, and a data logger function.

Request a quote on an Alsonic FX transit-time ultrasonic flow meter for your application. Contact SmartMeasurement to learn more


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  • 2 line LCD display with flowrate, totalizer & signal condition
  • Stores up 64 day/months totalizer daily value
  • Batch control function
  • Wide range of velocities, from ±0.03 to ±105 feet/sec
  • Transducers for pipe sizes ranging from ½” to 240″ (13 to 6000 mm)
  • High accuracy: ± 0.5% of reading
  • Clamp on flow meter transducers feature integral magnet for installation on metal pipe without use of a mounting belt
  • Data logger function includes date, totalizer, & signal condition diagnostic
  • Fast response time: less than 1 second
Measuring Principle:Transit time differential
Pipe Size:S Type: ½” ~ 4″ (15mm ~ 100mm)M Type: 2″ ~ 28″ (50 mm ~ 700 mm)L Type: 12″ ~ 240″ (300 mm ~ 6000 mm)
Pipe Material:Cast Iron, Stainless Steel, Ductle Iron Copper, PVC, Aluminum, Asbestos Fiberglass, ect.
Liner Material:Tar Epoxy, Rubber, Mortar, Polypropylene, Polystryal, Polystryene, Polyester, Ebonite, Polyethylene, Teflon, ect.
Accuracy:±1% ~ ±2% of reading (1.5 ~ 100 feet/sec.)±0.5% of reading (online calibration)
Repeatability:±0.2% of reading
Engineering Units:m³, Liter, US gallon, Imperial gallon, Million Gallons, Cubic Feet, US Barrels, Imperial Barrels, Oil Barrels
Time Units:Second, Minute, Hour, Day
Display:2 Line LCD with backlight; 5 digits with decimal point for flow rate, 8 digits for Forward, Reverse & Net totalized values
Protection:IP 65 (Converter), IP68 (Sensor)
Response Time:Less than 1 second
Keypad:16 Key with tactile action
Ambient temperature:-5 ~ 122°F (-20~60°C)
Fluid Velocity:0.03 ~ ±105 feet/sec.
Resolution:0.0003 feet/sec. (0.0001 m/s)
Data logger:64 data points including flowrate, totalizer, time & date
Weight:3.3 lbs (1.5 kg)
Mounting:wall mounting, panel, local
Max. Cable Length:500′ (150m)
Power Supply:90 ~ 260VAC 50/60 Hz
Alarm:High/Low with buzzer
Analog Output:4-20 mA or 0-20 mA
Data storage:Operation parameters and totalization data are stored in EEPROM for more than 10 years
Pulse Output:1~9999 Hz
Power Consumption:Less than 2W
Dimensions:9.25″ x 8.07″ x 3.75″

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Request a quote on an Alsonic FX transit-time ultrasonic flow meter, or contact SmartMeasurement for more information.