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Weathermatic - SmartWire 48-Zone 2-Wire Fixed Station Controller - SL9648TW

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Original price $1,631.30
Current price $1,149.98


SmartWire 48-Zone 2-wire Fixed Zone Count Smart Controller

  • Automatic ET Adjustments
  • Customizable Decoder Addresses
  • On-Board Decoder Diagnostics
  • SmartLink Network Ready


  • Connections for up to 3 different 2-Wire paths for maximum installation flexibility
  • LED display and status lights for programming, operation status, and troubleshooting with error codes
  • Programs and operates SmartWire™ SLDEC Series decoders


  • 1, 2, and 4 valve decoders available (Sold Separately)
  • Decodes signals from controller to open and close valves
  • Input voltage 24 – 28 volts from 2-Wire path
  • Shock resistant
  • Surge protection
  • Fully programmable for valve addresses using on-board controller programming feature
  • Freeze/heat resistant (-20° to 60°C)
  • 14 gauge PVC-coated connecting wires
  • Sealed electrical components for protection from water and dirt
  • Operates valves to a maximum of 100’ (30m) from decoder
  • Diagnoses and reports failed solenoids
  • Auto shut-down if communication is lost

How it Works

Wiring Sizes


  • 4 independent programs – each stacks or can operate simultaneously
  • 8 start times per program
  • Indoor/outdoor rated
  • Zone run times settable from 1 min. to 9 hrs. 55 min.
  • Rain/freeze sensing on/off button with tri-color LED indicator
  • Rain delay of 1 – 7 days
  • SLW5/SLW1 Weather Station rain delay programmable from 0 – 99 hours
  • Seasonal % adjust by program, by month
  • Omit time of day window, day(s) of week, and up to 7 calendar dates
  • Programmable zone-to-zone delay 1 min. – 3 hrs.
  • Watering days: custom days of the week, odd/even, or interval days
  • Run/Soak cycles by program
  • Large backlit LCD display
  • Non-volatile memory – with no battery required
  • Internal transformer with pre-installed 6’ line cord (SL1600, SL1620 only)
  • 2 simultaneous watering modes: basic mode and smart mode. Each zone can run in either mode independent of other zones, even in the same program.
  • Basic mode: user controlled conventional operation
  • Smart mode: daily automatic programming adjustments
  • 5 user-selectable languages
  • Simultaneous solenoid operation: 3 solenoids (SL1600), 5 solenoids (SL4800)
  • Internal 120VAC/230VAC transformer with pre-installed 6' line cord. Commercial Terminal block, On/Off power switch and LED Status Indicator.


  • ZIP Code input or latitude input
  • Sprinkler type input
  • Plant type input
  • Soil type input
  • More/less ET tuning
  • Watering run times
  • Review menu displays accumulated ET deficits by zone
  • Display maximum run time and minimum soak time
  • Displays temperature readings (daily high/low) for previous 5 days
  • Accumulates total run times by zone from the last reset date
  • Clear deficits for all zones
  • Extended rain delay programmable from 0 – 99 hours


  • Manual test runs each zone with zone run times from 10 sec. – 10 min.
  • Manual zone operation of a single zone (1 min. to 9 hrs. 55 min.)
  • Push button manual start of a program from control panel


  • Fault review displays all faults, including open and shorted zones
  • Test function using on-board multi-meter
  • Built-in valve locator
  • Backtrack Stored Program™


  • Zone-to-zone delay
  • Master valve timing sequence with zone valve programmable
  • Master valve/pump start operation assignable On/Off by zone
  • Clear program function
  • Clear all function
  • Grow-in program
  • Two independently programmed master valves
  • Normally open or normally closed master valve operation
  • Real time milliamp display
  • Flow sensor data review (requires SmartLink® Aircard)
  • Real time flow display (requires SmartLink® Aircard)

Manuals & Instructions



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