If your iMETOS ECO D3 was intended for soil moisture monitoring it comes in minimum with a set of soil
moisture sensors connected to the main unit. The sensors connected to it can be EC 5, HS10, 5TE from
Decagon Limited and/or Watermark sensors or vacuum tensiometers.

This sensors can be connected to the iMETOS ECO D3 itself or - of it is needed because of the installation or
because of the number of sensors – they can be connected to an extension box on a serial bus connection.