OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Opensprinkler PI KO › Reply To: Opensprinkler PI KO May 23, 2015 at 10:15 pm #37898 RayKeymaster The relay I used is the 22:22 — I am not sure what this means, is 22:22 a model number of the relay? Is it 24VAC relay or DC relay?
