NIVUS are manufacturer of flow measurement systems. The product range comprises flow measurement units for high accurate flow measurement in full pipelines and part filled pipes, channels and flumes. Flow meters such as the NOS hemispherical sensor or rod sensor in connection with the NivuChannel transmitter are used in clean and slightly polluted media. The POA correlation sensor is used as ultrasonic flow measurement sensor in connection with the NivuFlow transmitter in slight to heavily polluted media. This sensor can be installed on channel bottoms or channel walls. Our flow meters can be used both in clean water such as surface water as well as in wastewater.