There are basically three types
of Manometers available :
Single
Limb Well Type Manometer
These have a vast range of application for ease in
reading of pressure,vacuum, differential flow and liquid level .
Inclined
Manometer
For easy reading of low pressure , with an expanded
scale with maximum sensitivity . Ideal for measuring air stream
in ducts etc .
U Tube Manometer
These can be used to measure positive negative and
differential pressures . Direct reading scales with center Zero
, adjusting screws for accurate setting of liquid level in manometer
tubes .