Wireless Flow Meter

Smart Sprinkler Accessory

Reveal the true picture of your outdoor water use and stop leaks in a minute or less. Cutting-edge Rachio Wireless Flow Meter technology monitors outdoor water-use, halts costly leaks and protects your landscape from damage.The Rachio Wireless Flow Meter is only compatible with our latest technology, the Rachio 3 Smart Sprinkler Controller.


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Best-in-class support




2-Year limited warranty


Rebates available

Stop leaks in a minute or less.

Only cutting-edge Rachio Wireless Flow Meter technology monitors outdoor water-use, halts costly leaks and protects your landscape from damage.

Works exclusively with long-range Rachio 3 Smart Sprinkler Controller technology.

Reveal the true picture of your outdoor water use.

Revolutionary Wireless Flow Meter technology pairs seamlessly with Rachio 3 and the Rachio App to uncover patterns or problems in the pipes below.


Stop Leaks


Measure with Accuracy


Identify Flow Problems

Stop Leaks

The Rachio Wireless Flow Meter detects leaks with highly-accurate Vortex technology and instantly alerts at the first sign of trouble. If a high-flow leak is identified, Rachio removes the affected zone from queue, continuing the rest of the watering schedule as usual.

How the Wireless Flow Meter Works.

Install the Wireless Flow Meter between your backflow preventer and valve box, then it will automatically pair with the Rachio 3 Smart Sprinkler Controller.

As you water each zone, the Wireless Flow Meter learns the baseline flow rate. If a leak is detected, Rachio will protect your landscape by sending an instant alert and shutting down only the affected zone.

Watch over your water with Vortex technology.

State-of-the-art Vortex technology measures flow rates with accuracy - down to the gallon per zone. Designed with no moving parts, this streamlined technology withstands winterization and continuous use without maintenance or repair.

Professional installation recommended.

The Rachio Wireless Flow Meter is compatible with most irrigation systems; however, pipe size and material, installation location and more can affect installation requirements. Professional installation will get you up and running in no time!


Installation Assistance

Need help finding an installation professional? Let us connect you to a Rachio Pro!

Comfortable cutting pipes and getting your hands dirty? Use our Help Center to learn more about DIY installation.

We're here to help.

Questions or concerns about Rachio products? Reach out to our best-in-class Support team or explore the Help Center. We’re here for you every step of the way!

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Wireless Flow Meter Technical Specifications

In the box

  • Rachio Wireless Flow Meter

  • Plastic battery cover

  • 2 AA batteries

  • 4 screws

  • Installation guide

Pairing & Calibration Requirements

  • Rachio 3 Smart Sprinkler Controller (not compatible with Rachio Generation 1 or Generation 2 controllers)

  • iOS or Android compatible device

  • iOS 10.3+ or Android 4.4+ (subject to change)

Installation Requirements

  • Compatible Pipe Material:

    Copper, PVC, PEX or SDR9 poly.

  • Pipe Length:

    Length requirements vary by installation type. Visit rachio.com/flow to make sure your pipe is compatible.

  • Pipe Size:

    ¾” or 1” in diameter (pipes greater than 1” in diameter are not recommended)

  • Fittings:

    Fittings matched to pipe size (not included with the Wireless Flow Meter)

  • Wi-Fi:

    2.4 or 5 GHz wireless network signal available at controller installation location

  • Range:

    Installation site must be within 300 feet of an installed Rachio controller.

  • Note:

    Rachio Wireless Flow Meter is intended for outdoor water use only

Size and Weight

  • 6" x 2.5" x 3.25"

  • 0.55 lbs


  • Source:

    Two AA batteries

  • Life:

    Approximately 2 years with normal use

Operating Range

  • Instrument:

    Vortex Technology

  • Flow Range:

    .5 - 25.0 GPM

  • Accuracy:

    +/- 5%

  • Burst Pressure:

    350 PSI

  • Pressure Loss at 20 GPM:

    <1.5 PSI


2-year limited warranty


  • Data Transmission:

    LoRa® wireless network

  • Range:

    330 ft (100 m) open air

  • External Interface:

    Indicator light for pairing with Rachio 3 Smart Controller


  • Operating Temperature:

    32F to 120F; freeze-proof with no water in the system

  • Weatherproof; submersible to 3.3 ft (1 m) of water, no additional enclosure needed

  • Winterize system without removing flow sensor

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