Dissolved oxygen sensor materials

What is the counter electrode made of, and is it food contact safe? Some places imply that the electrode that is galvanically corroded can be made out of lead. Can any of this lead (or whatever metal is used here) leak into the measured product?
2025-04-30 02:02:10
ahsrab.rifat
DFRobot mentions that this sensor is suitable for measuring water quality in aquariums, hydroponics, and other non-industrial applications. However, they do not certify this product as food-grade or safe for direct contact with potable water intended for human consumption.
