The Rachio 3 Smart Sprinkler Controller is a WiFi-enabled irrigation controller designed for in-ground sprinkler systems with up to 12 zones. This weather-intelligent device uses real-time weather data to automatically adjust watering schedules, helping you save up to 50% on outdoor water use while keeping your lawn and plants healthy. Installation takes 30 minutes or less with no special tools required.

Key features include Weather Intelligence Plus with automatic rain, wind, and freeze skips, eliminating unnecessary watering during inclement weather. The intuitive Rachio App (no monthly fees) allows you to control and monitor your system from anywhere, with Quick Run for instant zone activation, schedule management, and real-time usage tracking in minutes. Advanced scheduling options include Fixed Schedules for specific days and times, Flex Schedules that adjust daily or monthly based on conditions, and Seasonal Shift that modifies run times throughout the year.

The controller integrates seamlessly with Amazon Alexa, Google Assistant, IFTTT, Alarm.com, and SmartThings for voice control and smart home automation. Premium features include Valve Monitoring for electrical health checkups of solenoids, Heat Wave Boost for forecast-based adjustments, and compatibility with Tempest personal weather stations and Davis Air Quality Monitors. The device measures 9.1 inches by 5.5 inches by 1.4 inches, weighs 1.05 pounds, and requires AC power connection. Requires iOS 10.3+ or Android 4.4+ smartphone for setup and a strong WiFi signal at the installation location. Weatherproof enclosure sold separately for outdoor installations. Model 12ZULW-C.