Generation 2

Smart Sprinkler Controller

The Rachio Generation 2 Smart Sprinkler Controller automatically creates watering schedules that lower your water bill and ensure a beautiful yard, while the mobile app lets you manage your sprinkler system from anywhere.




Looking for the 16-Zone? Click here!



Installing outside?

Don't forget your weatherproof outdoor enclosure


Best-in-class support




2-year limited warranty


Rebates available

The smart watering leader.

Take control of your watering with the controller that sparked a smart watering revolution. Manage watering on smartphone, create customized schedules and more with the best-selling Rachio Generation 2 Smart Sprinkler Controller.

The Rachio App takes the worry out of watering.

Your personal watering assistant makes maintaining a beautiful yard easy with mobile control, smart home integrations and customized schedules that automatically adjust for changing weather.

Water smarter with the Rachio App.

  • app-touch-hand-o

    Control sprinklers from anywhere using a smartphone, tablet or laptop.

  • calendar-clock-o

    Create customized schedules that water with accuracy.

  • weather-intel-o

    Weather Intelligence™ automatically adjusts schedules for changing weather.

  • iot-device-nest

    Works with Nest, Amazon Alexa, Google Assistant, IFTTT and more.

App remote screen

Installation is easy.

Get the Rachio Generation 2 Smart Sprinkler Controller up and running in just three easy steps. Install in 30 minutes or less - no special tools or expertise required!


Replace your old controller.


Plug existing wires into Rachio.


Complete setup in the Rachio app.

Upgrade to the Rachio 3 Smart Sprinkler Controller.

Get the next evolution of the best-selling Generation 2. Rachio 3 is designed for the future of smart watering, with foolproof installation, dual-band Wi-Fi and premium Weather Intelligence™ Plus. Upgrade to the latest smart watering technology today.

User Reviews

All of our reviews are submitted by real Rachio users.

We never use incentives to influence these reviews or alter their content in any way. Read to learn how customers rate our products on ease of setup and use.

Generation 2 Technical Specifications

In the box

  • Generation 2 Smart Sprinkler Controller

  • Power supply with 6-ft cord

  • Mounting hardware

  • Quick start guide

App Compatibility

iOS 10.3+ and Android 4.4+; subject to change. Mobile app is required to connect the controller to Wi-Fi. Web app available on most browsers.


Works with Nest, Amazon Alexa, The Google Assistant, IFTTT, Wink, Control4, Nexia and others.


8-zone and 16-zone models.

Size and Weight

  • Dimensions: 9.25" L x 5.625" H x 1.625" W

  • Weight: 1.2 Lbs

Power requirements

The Rachio controller must be connected to the AC power adapter included. DC Transformers are not supported.

  • Power Supply: External Transformer (6-ft cord - 2.1mm x 5.5mm Female barrel plug)

  • Transformer Power Input: 120V AC / 60Hz

  • Transformer Power Output: 24V AC

  • Zone output (24 VAC): Compatible with 24VAC Solenoids

Operating Temperature

Temperature Range: -4°F to 140°F

Wi-Fi Connection

Wi-Fi (2.4GHz) required. Supports dedicated 2.4GHz and dual-band networks. Cannot operate on 5 GHz only networks.


  • Rain Sensor: Wired & Wireless Normally Closed (NC) sensors

  • Soil Sensor: Wired & Wireless Normally Closed (NC) sensors

  • Wired Flow Sensors

Wire Terminals

Smart wire terminals sense which zones are active, and provide feedback if your irrigation system might have a problem.

Master Valve

Compatible with master valve, pump relay, or indexing valve.


2-year limited warranty

Power Disruption

In the event of Wi-Fi outage or intermittency, the controller’s memory retains the last saved schedule received from the Rachio cloud and maintains the schedule until an update can be downloaded.

Optional Outdoor Enclosure

Custom outdoor enclosure is available. Enclosure is weatherproof and allows for hardwiring.

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