Are you looking for our WT-HR Water Level Data Logger >>
The Probe should be mounted vertically. If the probe is in a flowing river the flow causes water to rise up on the probe giving high readings so in a river with strong flow the probe should be mounted inside a plastic pipe with holes drilled in it - this way the probe reads the real height of the river. Make sure the probe is mounted in such a way that the bottom holes (water entry ports) do not get blocked by mud or stones.
If you require logging capabilities with the WT-VO, please view our GP-HR general purpose data logger. Note: Unless you intend to log more inputs other than those from the WT-VO with the GP-HR, we would recommend using our WT-HR Water Height / Water Temperature data logger.