Mobile:
Select More in bottom right corner
Select Meters
Select Meter to edit
Click 3 dots (⋮) next to Record Reading
Select Edit Meter
Edit Meter details: Measurement Unit, Assign to Asset, Assign to Location, Reading Frequency
Click Update in top right corner
Web:
Go to Meters tab
Select Meter to edit
Click 3 dots (⋮) next to Record Reading
Select Edit in top right corner
Edit Meter details: Measurement Unit, Assign to Asset, Assign to Location, Reading Frequency
Click Update