Not to sound snarky, but if you own a pool then you have to make time to maintain it.

A few minutes a day is all it takes to test the water. An auto chlorinator only addresses chlorine. There are other things to consider.

I had one on the pool that came with a house. The tabs didn't last long and I'd forget to check them and boom, greenland.

If I did remember to check, the gas from the chlorinator was extremely harsh to the breathing passages.

My advice is to forget about it. Use a floater and not one that looks like a duck and check the water.

HTH