• 4 Zone Expansion Module
• For SL1600 Timer

SL1600 has Two Controllers In One; The “Basic” mode programs exactly like the conventional controllers used by most manufacturers while the “Smart” mode is where the power lies. The ET Watering adjusts the duration, frequency, and soak time by several factors. SmartLink Network gives you access to your SmartLine controllers via your Computer, Tablet, or Smartphone. No flashlight required in dark basements and garages. No battery required!

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