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Ultrasonic flow & thermal energy

Measured from outside the pipe.

Clamp-on flow and thermal energy meters with PoE, LoRaWAN or RS485 connections. Readings go straight into your own systems, or to MeterTube with the PoE and WiFi models.

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E3E clamp-on thermal energy meter mounted on a pipe
E3E · clamp-on thermal energy meter

How clamp-on measurement works

Two sensors on the same side of the pipe take turns sending sound through the water. Sound travelling with the flow arrives slightly sooner than sound travelling against it. That time difference gives the flow speed.

Flow 4.321m³/h
Velocity 1.24m/s
Δt · t↑ − t↓ 38.6ns

Illustration. These values are not measured data.

Products

Every model, one swipe away.

Start from what you measure. Open any model for plain-language details, installation guidance and specifications.

38 models

Help me choose → All models & specifications →

Connected measurement

From the pipe wall to your dashboard.

Choose the connection that suits your site. Every model feeds the systems you already use; the PoE and WiFi models also work with MeterTube.

  1. 01 · Measure

    Flow & energy meters

    Clamp-on or insertion, depending on the model.

  2. 02 · Connect

    PoE · LoRaWAN · RS485

    HTTP and MQTT over Ethernet, LoRaWAN gateways, Modbus and 4–20 mA.

  3. 03 · View

    MeterTube

    Trends, billing, alarms, and device and user management on web and app, for the PoE and WiFi models and the MP flow sensors.

  4. 04 · Integrate

    Your systems

    Building management, SCADA, data platforms or your own analytics.

What PoE and the other connections mean →

Applications

Built around your system.

Buildings & HVAC

Track water flow and heating or cooling energy.

Models F3EF3PE3EE5ED106ED114D116E3CLE3RE3ROE3WE5E8F3CLF3RF3ROF3WF5F8VF600MPMP LoRaWAN
Explore applications →
pFlow clamp-on meter installed on chilled-water pipework
Field installation · chilled-water pipework

In the field

Real installations, photographed on site.

All applications →

8 sites · select a photo to enlarge

Engineering & manufacturing

Developed, built and calibrated by one team.

Gentos brings product development, manufacturing, calibration and application support together, so the meter you specify is the meter that was tested.

  • Ultrasonic flow & thermal energy measurement
  • Flow calibration systems
  • Water treatment & environmental automation
  • OEM / ODM and distribution partnerships
About Gentos →
Showroom Showroom Production Production Flow calibration systems Flow calibration systems Conference room Conference room
  1. DevelopProduct and application engineering
  2. BuildManufacturing and configuration
  3. VerifyCalibration and quality documentation

Latest from pFlow

News and insights.

All insights →

Tell us what you need to measure.

Share your pipe size, liquid and the connection you need. An engineer will help you choose.

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