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Thanks slowmover
here are some photos of the flow sensor ,it uses a single magnet (black dot) on the internal paddle wheel ,the other black dot is steel counter weight.
Externally the magnet sensor is hall effect device,in in original form the gph reading is extremely erratic , so far I have added another hall effect device externally & this improves the gph stability quite a lot ,I want to add a third device on top & see what we get.
From my bench testing of the mpguino it nees at least three magnet sensors to show smooth gph readings.
Tp
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