MICRONICS

Clamp-on Ultrasonic Flow Meters

We are the leading global providers of fixed and portable Clamp-on Ultrasonic Flow measurement of liquids.

Our systems are focused on providing, non-invasive precise and accurate measurement of  energy management, water and environment and manufacturing and processing. Founded in 1985 and acquired by the British Rototherm Group in 2022, we have established ourselves as a reputable provider of non-invasive metering systems for the water, energy management, building services and manufacturing and processing industries.

A flow meter is a device that measures the rate of liquid or gas flow, providing essential data for monitoring and controlling various processes such as industrial manufacturing, water treatment, HVAC systems, and oil refining, where accurate measurement of fluid flow is crucial for efficiency and quality control.

Industries & Applications

Why Micronics?

Easy to install

Our portable or fixed ultrasonic flow sensors are clamped on to the outside of the device they are monitoring, which allows accurate fluid measurement non-invasively. No downtime is needed. No expensive installation required – you’re up and running very quickly.


Fully Certified

Fully Certified Certified for ATEX / IECeX / Class 1 Div 1. Our products are built for robustness and designed to operate in the harshest of environments. We have installations that have been running for over 35 years. Using our telemetry system, we have the ability for our engineers to remotely dial into each device worldwide to provide over-the-air updates and remote support.

The Non-Invasive Advantage

Micronics non-invasive approach to flow measurement provides several advantages, including reduced installation time, minimised maintenance requirements, and the ability to measure a wide range of fluids without altering the existing piping infrastructure.

Micronics Meter Hire

Flow Meter Hire – Flexible, Reliable, Expertly Supported

Micronics offers a comprehensive range of portable flow measurement equipment for short- and long-term hire to suit a wide range of application needs. Our rental fleet is designed to deliver flexibility, reliability, and cost-effective performance, backed by expert technical support.

Flow Meters Available for Hire

We provide four types of portable flow meters to meet different measurement requirements:

•Standard Portable Ultrasonic Flow Meter– Ideal for temporary monitoring of water/clean liquid flow in closed pipe systems.

•Portable BTU / Energy Flow Meter– Measures both flow and thermal energy for heating and cooling systems.

•Portable Doppler Flow Meter– Suitable for dirty or aerated liquids where ultrasonic transit-time meters are less effective.

•Portable Open Channel Flow Meter– Designed for flow measurement in partially filled pipes, channels, and non-pressurised systems.

Each unit is designed for temporary monitoring, system assessment, and troubleshooting, allowing you to check system performance, identify inefficiencies, or verify existing meters — all without any need for pipe cutting or system downtime.

Engineer On-Site Service

Need an expert on hand? Our experienced engineers can be available on-site to assist with setup, commissioning, or troubleshooting. Simply let us know your preferred date and time when arranging your hire.

Technical Support

When you hire from Micronics, you gain direct access to comprehensive technical support. Our experts are available to ensure your flow meter is properly configured for accurate, reliable measurement from day one.

Flow Meter Installation Service

Accurate flow measurement depends on correct installation. Whether you use clamp-on ultrasonic, Doppler, or open-channel technology, Micronics can provide installation guidance or full installation services to ensure your equipment delivers the best possible data. Our guides and engineers will help you with location selection, calibration, and setup for optimal performance and cost efficiency.

For bookings, enquiries, or a customised quotation, contact us at sales@micronicsflowmeters.com

The Micronics Promise

  • Unrivaled Accuracy

    Our ultrasonic flow meters have been developed and refined over the last 35 years, validated through independent test houses, and tested through our state of the art level calibration laboratory.

  • The Global Standard

    Micronics stands as a trusted source for an extensive array of cutting-edge Flow Measurement Meters such as ultrasonic water flow meters. With a global reach, Micronics caters to customers both in the UK and around the world. This ensures that customers receive unique and tailored solutions that address their specific flow measurement needs, backed by a wealth of technical expertise and a commitment to excellence

  • World Class Innovation

    Micronics is part of the British Rototherm Group, with over 180 years experience in manufacturing measurement innovation. Each year, a significant portion of the company’s revenue is invested in Research and Development to maintain our leadership and to ensure we are bringing the latest innovation to market with quality assured.

Our Products

Ultrasonic Flow - Wall Mount

  • A Clamp-on hazardous and industrial area, Ultrasonic Flow Meter that accurately and reliably provides flow monitoring.

  • The ULTRAFLO U1000MKII WM-HM is a clamp-on Ultrasonic flow meter with a separate wall mounted keypad and display.

  • The ULTRAFLO U1000MKII WM-HM is a clamp-on, Ultrasonic heat/energy meter with a separate wall mounted keypad and display.

  • The ultraflo UF3300 clamp on flow and process measurement meter for simple, accurate, flow measurement from outside the pipe.

  • Best value fixed non-invasive, clamp-on, measurement solution for dirty viscous or aerated water applications.

  • Irregular, open channel flow measurement solution with data logger including flumes or weirs.

  • Ultrasonic, non-contact, Open Channel flow meter, accurately measures flow through flumes and weirs.

  • The ultraflo UF3300 clamp on flow and process measurement meter for simple, accurate, flow and energy measurement from outside the pipe.

Ultrasonic Flow - Pipe Mount

  • The ULTRAFLO U1000MKII FM is a Fixed, clamp-on, pipe mounted, ultrasonic flow meter, delivering installation savings and non-invasive, dry servicing benefits.

  • The ULTRAFLO U1000MKII HM is a Fixed, clamp-on, pipe mounted, ultrasonic flow and energy meter, delivering installation savings and non-invasive, dry servicing benefits.

Ultrasonic Flow - Portable

  • Portable ultrasonic doppler flow meter measurement solutions, clamp-on and non-invasive, for dirty, viscous or aerated closed pipe applications.

  • PF LV550 Portable Area/Velocity Meter. Portable instrument for open channel and part filled pipe flow measurement and logging.

  • Portable ultrasonic clamp on and non invasive flow meter solutions for closed pipe applications.

  • Portable ultrasonic clamp on and noninvasive energy meter solutions for closed pipe applications.

  • Portable ultrasonic clamp on and noninvasive flow and energy meter solutions for closed pipe applications.

  • Portable Area/Velocity Meter. Portable instrument for open channel and part filled pipe flow measurement and logging. Extended battery life and a 2million point data logger.

“Every person, every day, is given dedicated time to improve their job. These incremental wins are transformational over the course of a year”


— Tom Gough, Production Manager for Micronics

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Speak to one of our highly skilled and friendly sales team now to understand more about our products and services.