I just bought this weather station that is highly efficient thanks to its two sensors I could settle in the greenhouse from my garden a few hundred meters from my house. well, I can take every moment the humidity of the earth and therefore provide more or less watering to avoid pourrisement of my vegetables for example. possibility to add 2 terrestrial probes if you wish! Furthermore trouble receiving terrestrial probes via the central block, this weather station is really good; more batteries are provided!