Measuring the flow of liquid

we need to send this information to a database

Sign a non-disclosure and we talk in depth

Sorry, no info == no help, this is an OPEN forum. I never sign a Non disclosure without talking to legal advisor.

Try the gigs and collaboration. There are enough people willing to make money from your secret project.

update -
At sparkfun.com there are probably liquid sensors with sample code.. send the info over serial to a PC and use Python to store oit in a database. ...

update 2
none at sparkfun, but there are at adafruit.

for free :slight_smile: