Rachio's sensor ports' limitations

Now that you have your Rachio controller ready to install, you might want to know the usage of multiple sensors on your Rachio Controller's wiring bay. Looking to wire up a rain, flow, or soil sensor? Take a look!

What if I have a Rachio Gen 1?

The Generation 1 controller can only use a single rain sensor or a normally closed soil sensor. The Generation 1 cannot read flow sensors or use two sensors.

Can I use a Flow Sensor and a Rain Sensor at the same time?

Yes, you can! On the Generation 2 and Rachio 3 you may use a flow sensor and a rain sensor at the same time. Just wire one to each "S" terminal and select accordingly in the mobile app. The common wire for both will be in the same terminal (SC or 24VAC-), so be sure they can fit.

I have two backflows. Can I use two flow sensors at the same time?

Yes, but there is one limitation: you cannot mix wireless and wired flow sensors. The Generation 2 accepts up to two wired flow meters. The Rachio 3 can work with two Wireless Flow Meters or two wired flow meters. You cannot install one wireless and one wired on the R3.

Do you still need help?

We have a chat support team ready to assist you! You can submit a support request by selecting the chat icon in the bottom right of this page and a member of the support team will contact you live.

Summer Hours (April-September)

7am-5pm (MST), 7 days a week.

Winter Hours (October-March)

8am-5pm (MST), Monday - Saturday. We are closed on Thanksgiving, Christmas, and New Years Day.