The Hoffer Ultrasonic battery powered flow meters from the Transi-Flo II Series is able to measure and store instantaneous flow rate and also the total volume that passes through the meter. It can be used in various applications such as cold or hot water in accordance to OIML R49-1 and other liquids similar in nature in water and other industrial applications. The meter can also be fitted with pressure gauges to monitor fluid pressure inside piping.The Hoffer Ultrasonic battery powered flow meters offer high levels of accuracy and reliability. This flow meter does not require external power. It also does not include any moving part and features significantly lower power drops. The meter comes with an electronic unit for processing sensor signal. This unit also displays instantaneous flow rate and total flow.