Are there any pictures of optical level sensor mounted? I got some parts
optical level sensor but I dont know how to mount them. inside or outside the tank?

is ther a picture with PL LF base and the sesnsor mounted?

PL LF BASE
PL FS 12
PL LF S8
PL LY
PL


I want to use them for autmatic top off.
Do I need 2 optical sensors for safety (flooding possibility issues?)