I have had three -
The tunze-hated it as it beeped constantly-and yes you can turn it off -and couldn’t access it if I was away from home-that is -no clue if it was too low.
Apex-liked it a lot initially. Was nice between sensors and the manual float cut off. Also liked that I could program...
I would not do this without the battery. If power goes out at night? Plus you can use the battery during the day if you use more than what panels are providing as an offset against the grid.
For us -unfortunately we are underpowered (won’t get into this but can’t add any new panels due to...