Hello! Im going to jail for halv a year, and i habe 7 bonsai indoors wich need watering. I dont trust my friends to water them for me. Is there an automatix watering system that will 99.99% work for my trees? No budget limit. Cost what it must cost

In my country we have companies that storage your trees and of course take care of them. Maybe someone from the local bonsai club or the local nursery can take care of them.
If money isn't a problem, then it's going to be easy to find someone that can take proper care of them. Good luck.

Hansen is right, leave them in a bonsai nursery.

Every watering system need human surveillance (or a science fiction scenario)

You could try this. Need to do math for each trees needs, no. of days, drip/24h, etc... I doubt it will go without problem, but not my trees. I would bring them to the nursery as said.
www.amazon.co.uk/Iriso-Watering-Kit-20-Plant/dp/B00336N6QS

Hi folks;

I don't use it, but IF I were to buy one, I would try this one below:
amzn.to/2X1DXdL

Well... as costs are not a problem, I'd take this one.

Clicio wrote:

Hi folks;

I don't use it, but IF I were to buy one, I would try this one below:
amzn.to/2X1DXdL

He need an indoor one. I use MistKing systems, but those are need more presence...

Felidae wrote:

Clicio wrote:

Hi folks;

I don't use it, but IF I were to buy one, I would try this one below:
amzn.to/2X1DXdL

He need an indoor one. I use MistKing systems, but those are need more presence...

No problem.

Auk wrote:

Felidae wrote:

Clicio wrote:

Hi folks;

I don't use it, but IF I were to buy one, I would try this one below:
amzn.to/2X1DXdL

He need an indoor one. I use MistKing systems, but those are need more presence...

No problem.

Looks like that’s a part of the “...or science fiction scenario”

I used a system from Gardena for balcony and indoor... but only ever for a couple of weeks.