Quote Originally Posted by shuorc View Post
How does one read ph levels at different depths???--shu
You would need a Lake Systems Combo-C-lector or a Humminbird pH Guide/Monitor unit ... both of which have at least 25' of cable.

This is a "HB pH Monitor unit": https://www.ebay.ie/itm/Hummingbird-...YAAOSwHUVa2O0a