Smart waterer
$ 149

Device enables watering of houseplants controlled by soil moisture sensor according to individual settings. Using a mobile application, you can see current condition of soil, schedule and history of watering.
You get a notification if the level of water in supply reservoir is low.

Splitter
$ 30
Splitter enables waterer to connect one more plant. You can set up individual settings for an additional plant and get information about soil moisture.