Product Library / Outdoor, Lawn & Irrigation

Research profile · last verified 2026-10-02

Rain Bird ST8O-2.0 Smart Irrigation WiFi Timer

⚠ Similar names, different products: ⚠ Rain Bird's ST8 family splits by ONE LETTER and the difference is where it can live. This is the ST8O-2.0 — the OUTDOOR model, IPX4-rated, 7.88 x 7.88 x 3.25 in. The ST8I-2.0 is the INDOOR model with no weather rating and a smaller 6.25-inch body, and the ST8I-INTL and ST8O-AUS are the 230 V international versions. Rain Bird's own specification page lists them as separate certification and electrical groups, so a listing that says only 'ST8' has not told you which one it is. ⚠ One certification detail follows the same split and is easy to get backwards: WaterSense is listed for the outdoor models as 'WaterSense [US]' outright, while inside the indoor group it is qualified as 'WaterSense [US, ST8I-WIFI only]' — the older indoor unit, not the 2.0.

Compatibility at a glance

Does it work with your platform?

Choose your platform to see its setup and functions. Your choice carries across product pages.

[1][10]
[1][10]
[2]
[1][10]
[3]

A connection can work while individual controls or automations remain unconfirmed. Read the connection details ↓

Protocols: WIFI[1][9]

Before you buy

What do you need to make it work?

No hub for the device alone

Choose a platform above for its connection. A hub can be optional for the device itself and required for a platform or automation.

One device can provide more than one role. These are setup requirements, not a shopping list of separate purchases.

What could you do with this?

Put its functions to use.

Research, not hands-on testing

Start with a documented control or event. The selected connection shows what is confirmed for that platform.

Documented device function

Valve

The device supports this control.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [1] [9]

Documented device function

On/off

The device supports this control.

Compare its platform availability in the table below.

Setup and sources

Device documentation: [1] [9]

A documented control or event is one part of a setup. It does not by itself establish a complete automation.

The functions, side by side

What can you use, and where?[1][9]

A platform connection does not confirm every function. Controls and reported events are shown separately from what an automation can use.

Controls
2 documented
Reported events
None documented by the vendor

Compare all five platforms. On a narrow screen, scroll the table sideways.

Documented device functions, platform controls and automation availability
Device functionApple HomeInconclusive[1][10]Google HomeInconclusive[1][10]AlexaWorks[2]SmartThingsInconclusive[1][10]Home AssistantInconclusive[3]
ValveDevice control
Control

Inconclusive

Control

Inconclusive

Control

Not stated

Control

Inconclusive

Control

Inconclusive

On/offDevice control
Control

Inconclusive

Control

Inconclusive

Control

Not stated

Control

Inconclusive

Control

Inconclusive

Automation availability for this model is not established.

✓ Documented for this connection. × A stated limit. ◐ A partial function. ? Not established. A listed device function does not establish a complete routine, its other equipment or any plan requirements.

Setup and sources

Apple Home

Not established. Apple, Apple Home, HomeKit and Matter appear nowhere on Rain Bird's product or support page for this model.[1][10]

Google Home

Not established on a first-party surface. Google, Google Home and Google Assistant appear nowhere on this model's Rain Bird product or support page, and the Alexa press release does not mention Google. Third-party listings do claim it; those are not used here. Recorded as unknown rather than none — the support page carries a 'Rain Bird® Smart Home Integration' document whose contents we could not read, and that is exactly where such support would be stated.[1][10]

Alexa

Documented by Rain Bird itself, though the document is old: its own press release names 'ST8-WIFI controllers' among the Alexa-enabled models and states that 'Users of Rain Bird controllers featuring the company's LNK WiFi Module can now talk to their irrigation systems', with 'over 180 commands and inquiries'. Setup runs through the Rain Bird app: enable Alexa in the app's settings and log into an Amazon account to enable the Rain Bird Skill. ⚠ The release is dated 14 February 2018, so this records a documented path rather than a re-verified current capability, and the current product page names no assistant at all.[2]

SmartThings

Not established. SmartThings appears nowhere on Rain Bird's product or support page for this model, and no Samsung-owned page naming it was read.[1][10]

Home Assistant

Genuinely unsettled, and the reason is worth reading before buying. Home Assistant ships a Rain Bird integration whose IoT class is 'Local Polling' and which works against 'LNK WiFi module of the Rain Bird Irrigation system' using the device's IP address — a real local path. But it names the LNK module rather than this timer or its LNK2 successor, and it carries this warning: 'The new Rain Bird 2.0 App and Firmware is not compatible with Home Assistant. The upgrade process will migrate devices to require use of the new Rain Bird IQ4 cloud, and Home Assistant will not be able to access the device.' Whether a product Rain Bird itself calls ST8O-2.0 is on the far side of that migration is not stated by either party, so this stays unknown rather than being recorded as support or as a denial.[3]

Device documentation: [1] [9]

Listed device functions are established from vendor documentation. An ability missing here is unestablished, not necessarily absent.

Connection details and setup sources
EcosystemSupportThe catch
Amazon AlexaWorksWorks with this ecosystem[2]Documented by Rain Bird itself, though the document is old: its own press release names 'ST8-WIFI controllers' among the Alexa-enabled models and states that 'Users of Rain Bird controllers featuring the company's LNK WiFi Module can now talk to their irrigation systems', with 'over 180 commands and inquiries'. Setup runs through the Rain Bird app: enable Alexa in the app's settings and log into an Amazon account to enable the Rain Bird Skill. ⚠ The release is dated 14 February 2018, so this records a documented path rather than a re-verified current capability, and the current product page names no assistant at all.
Google HomeInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[1][10]Not established on a first-party surface. Google, Google Home and Google Assistant appear nowhere on this model's Rain Bird product or support page, and the Alexa press release does not mention Google. Third-party listings do claim it; those are not used here. Recorded as unknown rather than none — the support page carries a 'Rain Bird® Smart Home Integration' document whose contents we could not read, and that is exactly where such support would be stated.
Apple HomeInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[1][10]Not established. Apple, Apple Home, HomeKit and Matter appear nowhere on Rain Bird's product or support page for this model.
SmartThingsInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[1][10]Not established. SmartThings appears nowhere on Rain Bird's product or support page for this model, and no Samsung-owned page naming it was read.
Home AssistantInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[3]Genuinely unsettled, and the reason is worth reading before buying. Home Assistant ships a Rain Bird integration whose IoT class is 'Local Polling' and which works against 'LNK WiFi module of the Rain Bird Irrigation system' using the device's IP address — a real local path. But it names the LNK module rather than this timer or its LNK2 successor, and it carries this warning: 'The new Rain Bird 2.0 App and Firmware is not compatible with Home Assistant. The upgrade process will migrate devices to require use of the new Rain Bird IQ4 cloud, and Home Assistant will not be able to access the device.' Whether a product Rain Bird itself calls ST8O-2.0 is on the far side of that migration is not stated by either party, so this stays unknown rather than being recorded as support or as a denial.

? Inconclusive means we researched that ecosystem and the evidence doesn’t settle it — the catch says why, and the sources are listed below. It is a statement about the available evidence, never a verdict on the product. A Setup Check researches your exact setup where the official sources don’t answer.

Plans and ongoing costs[1][10]

✓ Works without a subscription: Yes.

Vendor account required: Not established — we have not sourced this yet.

No subscription, plan or fee is named anywhere on Rain Bird's product or support pages for this timer — the app features, weather-based seasonal adjust and notifications are all listed without a tier attached. Recorded as "none" on the strength of the vendor carrying no plan; if Rain Bird later gates weather adjustment or reporting, that is a change rather than something missed here.

Maintenance and offline use

The catch

Two things the spec sheet says quietly. First, the WiFi story is ambiguous in the vendor's own words: the timer is described as 'WiFi-ready out-of-the-box with the LNK2 WiFi Module', while the box contents list is 'timer, transformer with 6 ft. cord, mounting hardware, and installation guide' — no module named. Read those two lines together before assuming the app works on day one. Second, and more consequential for a self-hosted household: Home Assistant's own Rain Bird integration is local-polling, but it documents the older LNK module and warns that 'The new Rain Bird 2.0 App and Firmware is not compatible with Home Assistant' because the upgrade migrates devices to Rain Bird's IQ4 cloud. This product is the 2.0 generation. Nobody — not Rain Bird, not Home Assistant — states whether those two '2.0's are the same thing, so a Home Assistant buyer is being asked to guess. ⊕ The good news the sheet does state: the schedule lives on the timer in 'Non-Volatile (100-year) program memory', it is 'Programmable at timer interface under battery power', and manual watering by zone or all zones is available at the box.

Who it's for

A homeowner replacing an outdoor sprinkler timer who wants weather-based seasonal adjustment and phone control, and whose smart-home life runs through Alexa or the Rain Bird app alone. Eight zones, an IPX4 outdoor housing and conduit guides make it a straight swap for a conventional outdoor controller. It is a poor fit for an Apple Home or SmartThings household, where Rain Bird documents nothing, and it is a risky fit for a Home Assistant household until the 2.0-firmware question above is answered.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

11 numbered sources· read them in the source's own words
  1. [1] rainbird.com, ST8-2.0 WiFi Smart Irrigation Timers product page — Read on the maker's own site, verified 2026-08-18
    Backs: Product identity, Protocols, Power source, Installation, Required hub or bridge, Subscription, Capabilities, Batteries, Market availability, Service status, Research status, Google Home compatibility, Apple Home compatibility, SmartThings compatibility
  2. [2] rainbird.com corporate press release, 14 February 2018 — Read on the maker's own site, verified 2026-08-18
    Backs: Amazon Alexa compatibility
  3. [3] home-assistant.io, Rain Bird integration documentation — Read the platform's own documentation, verified 2026-08-18
    Backs: Home Assistant compatibility
  4. [4] rainbird.com product page and store.rainbird.com catalog search, both read 2026-08-18 — Read on the maker's own site, verified 2026-08-18
    Backs: Price
  5. [5] rainbird.com ST8-2.0 WiFi Smart Irrigation Timers product page, already cited on this record for protocols, hubRequired, capabilities and three ecosystem cells — Recorded from our own earlier read, verified 2026-08-19
    Backs: What it provides to your home
  6. [6] Read 2026-09-09: https://www.rainbird.com/products/st8-20-wifi-smart-irrigation-timers carries a full electrical specification ('Input: 120VAC, 60Hz, 0.17A / Output: 24VAC, 60Hz, 0.65A') but no band, 802.11 or frequency statement, and links no app store; the Alexa press release cited on this record names no platform either. The Wi-Fi band and the phone platforms the app runs on both stay blank: checked, and not published. — Read on the maker's own site, verified 2026-09-09
  7. [7] the record's own customer-facing prose fields as they stood before 2026-09-11 (no new external read), verified 2026-09-11
  8. [8] the record's own customer-facing prose fields as they stood before 2026-09-23 (no new external read), verified 2026-09-23
  9. [9] Rain Bird's own ST8-2.0 WiFi Smart Irrigation Timers product page, read in full 2026-10-02. "ST8 2.0, 8-Zone Smart Irrigation WiFi Sprinkler Timer" · "Includes timer, transformer with 6 ft. cord, mounting hardware, and installation guide" · "Adjust irrigation settings from anywhere using a smartphone or tablet" · "Start, stop, or delay watering schedules without needing to be at the controller" · "Up to 8 zones" · "Non-Volatile (100-year) program memory" · "2 x AAA batteries for time and date backup (included)" · "Programmable at timer interface under battery power" · "WiFi-ready out-of-the-box with the LNK2 WiFi Module" · "Only requires two mounting screws (hardware included)" · "Outdoor Models ST8O, ST8O-AUS" · "For model ST8O-2.0 Input: 120VAC, 60Hz, 0.17A Output: 24VAC, 60Hz, 0.65A" · "Power back-up: 2 x AAA batteries maintain time and date while nonvolatile memory maintains the programming Provided with power supply cord" · "cULus [US and Canada], FCC Part 15b [US], WaterSense [US], CAN ICES-3(B)/NMB-3(B) [Canada], CE [European Union], IPX4, RCM [Australia and New Zealand]" — Read on the maker's own site, verified 2026-10-02
    Backs: Product identity, Protocols, Power source, Installation, Required hub or bridge, Capabilities, Batteries, Market availability, Service status, Research status
  10. [10] Rain Bird's own ST8-2.0 WiFi Smart Irrigation Timers product page, read in full 2026-10-02 (10,159 characters of extracted text). Alexa, Google, Apple, HomeKit, Matter and SmartThings occur zero times. No plan, subscription or fee is named. The related-documents list carries a document titled "Rain Bird® Smart Home Integration", which this read did not open. — Read on the maker's own site, verified 2026-10-02
    Backs: Subscription, Google Home compatibility, Apple Home compatibility, SmartThings compatibility
  11. [11] This record's own entries for the pages that name the route., verified 2026-08-18

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.

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