Working Rain Bird RainBird ESP-LXD Sprinkler Indoor/Outdoor Controller with TWO ESPLXMSM12 12 zone Modules (total of 24 zones in unit with option to add up to 200) .This unit has been tested by our technician .If you have any issues not mentioned in the listing please contact and allow us to respond before taking any ebay actions . We will respond in a timely manner. Thanks .