Easy Planter is a plant monitoring device able to sense temperature, humidity, pressure, moisture, light etc.
A small bluetooth low energy plant sensor that easily fits into a plant pot. It can monitor temperature, humidity, pressure, moisture, light, and has I2C extension pins so that you can add other modules. Information is sent to a phone, and notifies you when it needs something.
Easy Planter – A Simple Way Of Monitoring Plants – [Link]