For measuring electrically-conductive liquids, pastes and slurries, the DWM 1000 electromagnetic flow switch and the DWM 2000 electromagnetic flow meter are maintenance free with no moving parts.
The DWM 1000 uses an induced voltage converted into a switching signal. The DWM 2000 uses an induced voltage converted into a 4-20 mA current output that is proportional to the flow velocity. Optional digital display is also available.