Rain Bird SST600IN Irrigation Controller — Indoor 6-Station, 4 Start Times & Seasonal Adjust

The Rain Bird SST600IN is an easy-to-program indoor 6-station irrigation controller that manages up to six valves with flexible daily and seasonal scheduling.

Built for homeowners who want reliable, customizable watering without complexity, the SST600IN replaces the older SST600I and adds practical features like multiple programs per day, seasonal adjustment, and built-in surge protection. Its sealed case, memory-retaining electronics, and clear LCD with LED indicators make setup straightforward and dependable for indoor installation in a garage, utility room, or shed.

How does the SST600IN simplify setting up different watering zones?

This controller lets you program each zone independently so lawn, garden beds, and shrubs can follow tailored cycles. Turn the dial to a zone, choose run times from 0–240 minutes, select days or odd/even schedules, and save unique repeat patterns for each area.

• Zone-by-zone dial programming for quick adjustments
• Up to 240 minutes per station for long soak cycles
• Custom day selection, odd/even, or interval cycles
• Stores all settings in memory—no reprogramming after power loss

What options are there for daily and soil-specific watering?

The SST600IN supports up to four start times per day so you can use short, repeated cycles to water slopes or clay soils without runoff. Combined with the "Seasonal Adjust" the controller lets you lengthen or shorten run times for changing climate conditions without altering each program manually.

• Four independent start times per day for interval scheduling
• Seasonal Adjust modifies duration by percentage rather than reprogramming
• Rain Delay pauses all schedules up to 72 hours when needed
• One-touch "Water 1 Zone Now" and "Water All Zones Now" for manual control

How does the SST600IN protect itself and your irrigation system?

Durability features reduce downtime and protect electronics: the unit includes surge protection, a sealed enclosure that resists moisture and pests, and automatic diagnostic checks that halt irrigation when shorts are detected. It also retains configuration in memory so a power interruption won’t erase your schedules.

• Built-in surge protection to guard against lightning and voltage spikes
• Sealed case prevents infiltration of insects, dust, and moisture
• Automatic wiring/valve troubleshooting with on-screen alerts for affected stations
• Non-volatile memory preserves settings indefinitely

Which accessories and valve types work with this controller?

The SST600IN accepts most standard 24 VAC irrigation valves and supports a master valve or pump start relay, plus an external rain sensor for environmental shutdown. It comes with a transformer power plug and a six-foot cord for simple indoor installation.

• Compatible with most 24 VAC irrigation valves
• Supports master valve or pump start relay connections
• Accepts a remote rain sensor to suspend schedules
• Includes transformer with 6' cord and installation guide

Who is this for? The Rain Bird SST600IN fits homeowners, small-property managers, and DIY landscapers who want straightforward, dependable control of up to six irrigation zones. It’s ideal when you need reliable memory retention, basic surge protection, and flexible scheduling without the complexity of commercial controllers—especially for indoor mounting in a garage or utility area.

Key specifications: 6 stations; 0–240 minute run time per zone; four start times per day; Season Adjust +/-100% to -90%; Rain Delay up to 72 hours; transformer included (120 VAC input; 25.5 VAC output); UL and cUL certified.