Ultrasonic flowmeters are sophisticated, non-invasive instruments engineered to measure the flow rate of liquids and gases using high-frequency acoustic signals. Unlike traditional mechanical or intrusive flow measurement devices, ultrasonic flowmeters operate by transmitting and receiving ultrasonic pulses across the pipe wall—typically using clamp-on or inline transducers. These pulses travel both in the direction of the flow and against it, and the device calculates the flow velocity based on the difference in transit times. This principle, known as transit-time differential, enables accurate and repeatable measurements without any physical contact with the fluid
We also offer a wide range of ultrasonic flowmeters.
Each designed for accurate, non-invasive liquid flow measurement across diverse industrial applications.
A rugged, portable clamp-on ultrasonic flowmeter designed for fast, reliable liquid flow measurements in industrial settings. With proven transit-time technology and Doppler assist, it delivers accurate results across a wide range of pipe materials and diameters. Ideal for flow surveys, energy audits, and maintenance check.
The KATflow 230 is easily portable but incorporates an advanced specification for situations which require comprehensive measurement features coupled with easy operation. The flowmeter has two measurement channels, which allow it to monitor two pipes simultaneously or to improve accuracy in non-ideal conditions.
The KATflow 210 is a portable flowmeter designed for situations that require a reliable flow measurement regardless of the conditions in which it needs to be operated. With its advanced battery technology and durable waterproof housing the instrument is intended for long-term installation in remote areas where access to power is limited and exposure to the worst of elements is likely.
The KATflow 200 is a fully portable non-invasive flowmeter with a power which is belied by its small size. This lightweight flowmeter is incredibly easy to use and can be operated one-handed which makes it an ideal tool for use in confined spaces or when working at height.
Ideal for accurate, non-contact flow measurement in systems handling water, chemicals, or process liquids.
Water and Wastewater
- A non-invasive, clamp-on or inline device designed to measure flow in clean or contaminated water systems. Using transit-time or Doppler ultrasonic technology, it delivers accurate, real-time data without interrupting the process. Ideal for municipal water networks, treatment plants, and industrial discharge monitoring, it handles varying pipe materials and fluid conditions with minimal maintenance and high reliability.
Food Manufacturing
- A hygienic, external flow measurement solution designed for precision and compliance in food and beverage production. Utilizing transit-time ultrasonic technology, it accurately monitors liquid flow—such as water, syrups, dairy, and juices—without disrupting the process or compromising product integrity.
Building Services
- A compact, non-disruptive solution for monitoring water, heating, and cooling flows in commercial and residential buildings. Designed for energy efficiency and system optimization, it uses transit-time ultrasonic technology to deliver accurate, maintenance-free flow measurement across HVAC, plumbing, and utility networks. Ideal for chilled water, hot water, and district heating systems.
Pharmaceutical
- A sterile, non-contact flow measurement solution engineered for the stringent demands of pharmaceutical production. Utilizing transit-time ultrasonic technology, it delivers accurate, real-time monitoring of purified water, solvents, and process liquids—without compromising pipeline integrity or cleanroom standards.
