Electromagnetic flowmeter accurately measures the flow volume of any conductive liquids, such as water, seawater, sewage, acid, alkali or any mixture of liquids and solids which have a specific minimum electric conductivity.


Clamp-on Flow and BTU meters

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A Doppler flow meter is based on the Doppler Effect. It works well with suspension flow where particle concentration is above 100ppm and particle size is larger than 50 ~ 100 µm, but less than 10% in concentration. Doppler is easier to make and less accurate and cheaper than transit-time flow meter. The accuracy can be about 5% at best.

UltraSonic BTU Meter
e-Cool Series USH-20

The SEM 300 series are the ideal solution for accurately monitoring your consumption offering a direct path to better energy management.

Designed for residential and commercial energy consumers tied to distribution networks.

Vortex Flowmeter VF404 Series


USonic Metering products enable you to upgrade your system and easily monitor the consumption without the need for costly and time-consuming redesign

In the remote version ultrasonic level meter the electronic unit of the level meter is separate from the ultrasonic probe and is connected by cable to each other. Making it flexible and customized according to customer demand.

UltraSonic Water Meter
USW-3C&I Series

For Middle East & North Africa

Manufactured to be rugged, the 3C&I has sensor body constructed from high quality steel. With no moving components, once installed the meter remains accurate and maintenance free. The non obstructive sensor design leads to no blockage and miniscule pressure drops. This robust design is ideal for challenging environments such as those in desert applications.

This smart meter, in accordance with OIML R49, is designed specifically to capture water consumption in residential and commercial applications while integrating into an AMR/AMI network and billing solution.

The most diverse substances are transported and distributed in piping systems every day. The fluids flowing through pipes often have completely different properties. Therefore different principles are required for flow measurement.

One of the main ultrasonic technologies is transit-time technology, which was initially developed by British physicist Lord Rayleigh.

The principle consists of having a pair of transducers incorporated inside the flow meter. The main transducer component is piezoelectric, which converts the electrical energy (signal) to mechanical energy (ultrasound). As a result, each transducer will send/receive a signal.

The velocity range of a transit-time ultrasonic meter is typically quoted as between 0.01 m/s to 80 m/s and above. This is much wider than other flow metering technologies. However, the actual velocity range that can be accurately measured will also depend on a number of factors including signal resolution, process conditions, and pipe Reynolds number, to name but a few.

Manufactured to be durable with an extremely long life span the USH-20 is designed specifically for challenging heating and cooling applications as the meter remains steadfast and accurate even when tasked with measuring the dirtiest liquids.

Transit-time vs. Doppler

Conduct clamp on liquid flow, temperature and thermal energy measurements. Cover a wide pipe size range from 3/4” to 120” (DN20 to DN3000). Multiple input/output features.

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About USonic Metering Technology

Smart Electricity Meter iEnergy series SEM300

UltraSonic Water Meter
wH2O Series

Clamp on BTU meter installation Instruction

USonic Metering is a global leader in flow and energy management solutions. Through continuous innovation, we transform complex ultrasonic technology into affordable, reliable solutions for accurate flow and energy management. 

USonic Metering offers water, heat, electricity, and gas meters as well AMR/AMI solutions for complete utility management and solutions

Electromagnetic Flowmeter
E-MAG3x series

USONIC Metering

The VF404 series vortex flow meters offer accurate, low-maintenance flow measurements for gas, steam, and liquid applications. It is widely used in the chemical industry, power plants, mining, metallurgy plants, steam plants, and water conservancy.   


UltraSonic Level Meter
Remote Version


A transit-time flowmeter is based on the time difference between upstream and downstream sound propagation intervals. It provides a very good accuracy (about 1~2 percent). It works well for clean flow or flows with minor particles or little sand. Applications include pure water, seawater, wash water, sewage, process liquids, oils, chemicals, and any homogeneous liquids which are capable of ultrasonic wave propagation.

Smart Mobile Reading and Fixed / Automatic Meter  Reading

The whole system mainly consists of ultrasonic water meter, collector and management system




Our products range from water meters, electricity meters to BTU meters and much more...

​We have the perfect solution for a retrofit where there is no metering compartment available