A Single Jet Water Meter is a kind of Velocity Type Water Meter, and it is used as Residential or Domestic Water Meter. It makes use of one port to create a jet of water, which makes the turbine rotate. There is a single stream of water directed towards a turbine mounted in a radial position within the meter. The turbine starts rotating and transmitting the motion to the display mechanism, which allows people to measure the volume of water passing through the meter.