I'm looking for "plug and Play" sensors for the following instruments:
Natural Gas Flow meter:
Type: Schlumberger G4
Water Flow meter:
All see attached photo's.
After checking with a simple compass I noticed that there are no magnets in the meters available.
So the reed sensors are of no use for me :-(
On the Gas meter I found a little "looking glass" opening at the left bottom.
Inside of the meter there is a black & white striped disc.
So an opto sensor could be a solution.
Also on the spot of the most right red digit there is a silver patch on the 0 position.
All solutions are welcome.