ORP / Redox icon for swimming pool sensors

[klona]

Before submitting a new icon request, please confirm the following:

• I have searched all issues to make sure there isn't a request for this icon.
• I have searched the current library to make sure the icon doesn't already exist.
• I understand that brand icons are no longer being added and I can use SimpleIcons for my brand icon needs.
• I only intend to request a single icon (or a few near-identical ones) in this issue.

What would you use this icon for?

ORP sensors for swimming pool.
PH icon already exists, but found none for ORP
I am very bad on graphism and cant manage to get chatgpt to do a good svg..

Give us an example of what this icon might look like.