man_made=monitoring_station
 monitoring:water_level=yes
 operator=Hydria
 
 ref=see flowbru. 2 sensors. 
Level ans speed

via StreetComplete 51.1

Attached photo(s):
https://westnordost.de/p/137558.jpg
https://westnordost.de/p/137559.jpg
https://westnordost.de/p/137560.jpg