@RobDaviesEA SonTek torrent board mini with a StreamPro, bolt holes line up and the sensor fits with a bit of padding to hold in place. No more Eskimo rolls.
@StuartCullen17 Measuring velocity to determine River Flow, gauge record here stated in 2016 and yes this event is ~1.5m below the current highest level at Sterling Mills. This was our highest calibration measurement.