Weathermatic - SmartLine 4-Station Indoor/Outdoor Controller Bundle w/ Flow Control - SL1600-1YR-BDL-FLOW-M1NA
Weathermatic - SmartLine 4-Station Indoor/Outdoor Controller Bundle w/ Flow Control - SL1600-1YR-BDL-FLOW-M1NA is backordered and will ship as soon as it is back in stock.
Why so “cheap” at CheapSprinklers? Low prices by design — same parts, no compromise
Our prices are lower because of how we run our business — not because the product is different — and we pass those efficiencies directly on to you.
You’re receiving the same brand-new, factory-sealed item sold by big-box, supply-house, or bloated online-warehouse sellers — delivered direct to you, for less.
- Bulk Purchasing: We buy in high volume to lower per-unit cost
- Low Overhead: No physical storefronts or unnecessary middlemen
- Price-First Model: Our business is built around keeping everyday prices as low as possible — so you can put the savings toward other projects or your business.
- Fast & Efficient Fulfillment: Streamlined US warehouse operations keep costs down and orders moving fast.
The Result: Genuine products with full manufacturer warranty — delivered fast, without paying inflated big-box, supply-house, or bloated online-warehouse markups for the same parts.
CheapSprinklers Product Guarantee How we guarantee authenticity and warranty coverage
All products sold by CheapSprinklers are brand new and factory sealed. This Weathermatic Modular Controller (SL1600-1YR-BDL-FLOW-M1NA) is sourced directly from Weathermatic and ships from us in new-in-box retail packaging.
We’ve been sourcing and supporting irrigation products for professionals and DIYers through both brick-and-mortar and online channels since 1981.
If there’s ever an issue, CheapSprinklers stands behind what we sell and will help coordinate any warranty claim or replacement.
- Genuine New Weathermatic Modular Controller: no knockoffs, no refurbished, no old stock
- Factory Sealed: shipped in original new-in-box retail packaging
- Current Production Inventory: no discontinued or clearance stock
- Complete Weathermatic Warranty: full manufacturer coverage begins when your order is delivered
The Result: Peace of mind. You’re installing top-quality equipment — and if there’s ever an issue with this Modular Controller, you’re fully supported by CheapSprinklers and Weathermatic.
Whats in the box?
- 1 - SL1600 4-Zone Base Controller
- 3 - SLM4 4-Zone Module
- 1 - SLW5 Weather Station
- 1 - SL-AIRCARDFLOW-M1NA SmartLink Aircard with Flow
- 1 - SL-PLAN1F-CARD 1-Year SmartLink Service Plan & Total Protection Warranty
BASIC FEATURES
- 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 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.
SMART WATERING FEATURES
- 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 OPERATION
- 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
ON-SITE DIAGNOSTIC/TROUBLESHOOTING FEATURES
- Fault review displays all faults, including open and shorted zones
- Test function using on-board multi-meter
- Built-in valve locator
- Backtrack Stored Program™
ADDITIONAL FEATURES
- 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
- Real time flow display
Manuals & Instructions
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Box QuantityN/A
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