automatic irrigation system for gardena 1407 20 plantersIndependent of the water tap, the automatic irrigation of planters can operate from a rainwater tank, for example. Extendable system, if you need to connect more than 6m of planters. To save water, there is the possibility of connecting it to the electronic rain sensor, ref. 1189 or the humidity one, ref. 1188. This kit includes: a transformer with timer to select the irrigation program, a 14 V low voltage pump with dirt filter, 25 linear drippers of