The MJ-series of water meters are affordable multijet pulse meters that tolerate low-quality water and are simple to service. Pulse rates are factory set to customer specifications, but can easily be changed in the field without special tools. The meter is available in ?- to 2-in. sizes, and is fitted with a two-wire reed switch, a Hall-effect sensor (for use with powered controls and metering pumps) or a simple totalizer model.