Summary

This article will help you identify the technical specifications for your Rachio 3 and what is compatible with. 

What's new with Rachio 3? 

Rachio 3 offers many great improvements over our previous controllers:

• Supports dual-band Wi-Fi (2.4 GHz & 5 GHz)
• Easy-press connectors are easier to install than ever and support 14-22 gauge wires
• Rachio 3 Smart Sprinkler Controller

What's in the Rachio 3 box? 

• Rachio 3 Smart Sprinkler Controller
  • Weight: 1.05 lbs
  • Dimensions: 9.1" x 5.5" x 1.4" 
• Power Supply with 6-ft Cord
• Mounting Hardware 
  • 4 screws (1-3/4" in length)
  • 4 drywall mounts (1/4" diameter)
• Quick Start Guide

Rachio App Compatibility

• Click here for Rachio App Compatibility Requirements.

Wi-Fi Connection

• Requires 2.4 or 5 GHz wireless network signal available at the installation location

Power Requirements 

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

• Power Supply: External Transformer. Replacement power supplies available here on Rachio.com
• (6-ft cord - 2.1mm x 5.5mm Female barrel plug)
• Transformer input: 120 VAC ~60Hz 300mA
• Transformer output: 24 VAC 850mA (0.85 Amp)

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

Wire Compatibility 

Rachio 3 supports 14-22 gauge wires.

Hardware Compatibility

Rachio 3 is compatible with:

• Master valve / pump relay
• 3rd Party Sensors 
  • Rain Sensor: Wired & Wireless Normally Closed (NC) sensors
  • Soil Sensor: Wired & Wireless Normally Closed (NC) sensors
• Wired flow sensor (check compatibility)

Integrations

• Rachio 3 works with Amazon Alexa, Google Assistant, and others.

Zones/Model Numbers

• 4 zones (Model: 4ZULWC)
• 6 zones (Model: 6ZULWC)
• 8 zones (Model: 8ZULWC)
• 12 zones (Model:12ZULWC)
• 16 zones (Model: 16ZULWC)

Model numbers may have additional letters depending on the model, such as Pro Series, which contains PS at the end, or BLI in the case of Indoor Pro Series (that does not contain the weatherproof enclosure), or USI.

Warranty 

• 2-year limited warranty.

Optional Outdoor Enclosure 

Outdoor installations require an outdoor enclosure to protect your controller. 

• Compatible with Rachio Outdoor Enclosure (Generation 2)  
• Operating temperature: -13°F to 140°F