Generation 1 Tech Specs


Rachio Mobile App works on Android & iOS (iPhone/iPad) mobile devices; the mobile app is required to connect the controller to WiFi. Minimum OS requirements are iOS 10.3+ or Android™ 4.4+.

Rachio Web App is also available on most web browsers.

The Rachio Mobile App is not available for Blackberry or Windows Mobile devices.

NOTE: Beta builds of any of the above operating systems are not supported, and app functionality may be impacted.


Rachio controllers require a 2.4ghz Wi-Fi internet connection (802.11 b/g/n).

Supported Wi-Fi encryption standards:

  • WPA2 (recommended)
  • WPA

Enterprise level encryption is NOT supported .

We recommend internet connections with a 1 mb or higher upload speed for optimal performance.

In the event of WiFi outage or interuptions, the controller’s memory retains the last saved schedule received from the Rachio cloud and maintains the schedule until an update can be downloaded. ( more info here )


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

  • Transformer Power Input: 120V AC / 60Hz
  • Transformer Power Output: 24V AC (1000 mA = 1 Amp)
  • Designed For 24V AC Solenoids
  • Power Supply: External Transformer (6 ft cord)
  • Power Supply Housing: 2-1/8" 3-1/8" x 1-3/4"

In the event of a power outage, the system will not run. Account, zone and schedule settings will be saved in the Rachio cloud.

Model Numbers

  • 16 zones (16ZULW)
  • 8 zones (8ZULW)

Languages (Rachio App)

  • English

Size and weight

  • Dimensions: 2.165” x 7.25” x 7.25”
  • Weight: 2.7 Lbs


Sprinkler Compatibility


In the box

  • Rachio Controller (Wallmount + Front Panel)
  • Quick Start Guide
  • 6-foot power Adapter
  • 2 screws and drywall mounts

UL Certification*

Company Name Category Name Link to File
RACHIO CORP Plumbing Accessories QMTX.E467049
RACHIO CORP Plumbing Accessories Certified for Canada QMTX7.E467049

*Search the UL Online Certifications Directory for "E467049"

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