Weathermatic SmartLink SL4824-AASTWFMO1YR-25 24 Zone Smart Flow Bundle. The days of irrigation controllers being programmed once, and left alone for months, is over. Adding the SmartLink Network gives you access to your SmartLine controllers via your Computer, Tablet, or Smartphone. Irrigation Management made simple, affordable, and packed with features. Contains SmartLine controller, SLW5 Wireless Weather Station, SmartLink Aircard including subscription and extended warranty prepackaged in a single bundle.