The flow sensor range consists of types between type 200 and type 236 and include OEM flow sensors.
There are types of sensors that are based on the Karman vortex street, in which there are choices between various versions as there exists integrated temperature measurement. Such sensors are without any mobile parts and are insensitive to pollution and also have a very high accuracy. Some are comprised of a jagged construction of red brass. These devices come without any mobile parts and are also having marginal pressure loss and high accuracy, being insensitive to debris.
Other non-OEM flow sensors are also available with a larger variety concerning power supply and outputs. These sensors too are without any mobile parts and are insensitive to pollution and are proven to be affected by very few pressure losses while still maintaining very high accuracy. There are sensors comprising of a rugged construction which consists of brass connection.
There are also various sensors available with similar specifications to each other but with differences in the case versions.