Stop leaks in a minute or less.

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

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

Flow meter on wall

Reveal the true picture of 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

White Pixel Phone

How the Wireless Flow Meter Works.

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

As each zone is watered, the Wireless Flow Meter learns the baseline flow rate. If a leak is detected, Rachio will instantly send an alert and shut down the affected zone.

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.

Illustration of how the Wireless Flow Meter works

Professional installation recommended.

Rachio had made meter installation easier than ever before for professionals. Explore our installation overview, pre-install shopping list and requirements.

Wireless Flow Meter against a wall

We're here to help.

Questions or concerns about the Wireless Flow Meter? Reach out to our dedicated Pro Support team or explore the Help Center. We’re here for you every step of the way!

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Support illustration

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 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


Extended 4-year warranty with Pro installation


  • 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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