Product Library / Smart Pool

Discontinued

WaterGuru Sense

WaterGuru's own published questions and answers still describe the SENSE 2's readings, batteries and cassettes alongside the SENSE 3, and the company is plainly still operating. Re-read on 16 September 2026 and unchanged: the SENSE 1, 2 and 3 are still described side by side, with no end-of-life, cutoff or withdrawal language anywhere. What WaterGuru does promise is on that page — 'The WaterGuru SENSE comes with a 1-year warranty and a 30-day money-back guarantee'. What it does not promise is how long the service behind the device will keep running; those are two different things, and only the first has been committed to. WaterGuru's separate support site would not open for us, so its individual support articles were not read directly. The cassette consumables (about monthly) are the real cost of ownership — budget for them. Check your signal before you buy: WaterGuru says you need working Wi-Fi at the pool itself, and at least two bars where the unit sits, which rules out plenty of pools set back from the house. This profile covers the SENSE 2, which WaterGuru's own store no longer sells; the store now sells the SENSE 3 in its place.

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.

[22]
[21][28][33]
[3][28][33]
[23]
[32]

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

Protocols: WIFI · BLUETOOTH[18][28][33]

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.

We have not established a control or event to illustrate for this product. Check the connection and equipment information above.

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?[13]

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

Controls
Not established from vendor documentation
Reported events
Not established from vendor documentation

Individual function comparisons are not available. The control and event summaries above distinguish an unanswered question from a documented absence.

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 AlexaPartialPartial support — see the catch[3][28][33]Ask-only skill — voice readings for temperature and chemistry; no routine triggers or automations (it's a monitor, there's nothing to control)
Google HomeDoesn't workVerified: does not work with this ecosystem[21][28][33]Formerly had a Google Assistant integration; retired when Google removed conversational actions (per WaterGuru's FAQ)
Apple HomeInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[22]Not established. WaterGuru publishes one Apple route and it is a voice one: you set a shortcut up inside the WaterGuru app on an iPhone, then ask Siri "How's my Pool?" or "What's my Water Temperature?". The article that sets that out never mentions Apple Home, HomeKit or the Home app, in either direction. Asking Siri through a maker's own app is a different thing from adding a device to Apple Home, and nothing WaterGuru publishes settles the second — it neither offers it nor rules it out. Nothing says it works, so do not plan around it; ask WaterGuru before you buy if Apple Home matters.
SmartThingsInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[23]Not established. WaterGuru's own support site covers Alexa and Siri voice readings and announces the end of its Google Home integration, and says nothing about SmartThings either way. Samsung publishes nothing about this monitor either. If SmartThings control is what you need, ask WaterGuru before you buy — nobody on either side has answered the question in public.
Home AssistantInconclusiveWe researched this and the evidence doesn't settle it — the catch explains why[32]Not established. Home Assistant has no WaterGuru integration of its own, and WaterGuru's smart-home answers cover Alexa and the end of its Google integration without naming Home Assistant. A community-built add-on reads temperature, pH, chlorine and cassette status from WaterGuru's cloud, but neither WaterGuru nor Home Assistant stands behind it, and it can stop working without notice.

? 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[5][9][28][33]

✓ Works without a subscription: Yes.

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

WaterGuru states it plainly: 'No. WaterGuru does not charge subscription fees. There are no ongoing software or service costs for using the device.' The recurring cost is a consumable, not a fee — measurement cassettes run roughly $120–240/yr depending on which cassette you buy and how long your season is.

Maintenance and offline use[8]

Who it's for

For pool owners who want daily water chemistry readings without test strips — and one of the few consumer water monitors still operating after the Sutro shutdown.

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 →

42 numbered sources· read them in the source's own words
  1. [1] 2026-07 web research sweep (docs/02 catalog; primary sources cited there) — Checked a certification register, verified 2026-07-12
  2. [2] waterguru.com (company confirmed ACTIVELY operating mid-2026 — live store, phone support, promos; no Sutro-style shutdown) — current SKUs SENSE 2 (~$349) and SENSE 3; no subscription; cassette consumables recurring — Read on the maker's own site, verified 2026-07-15
  3. [3] waterguru.com FAQ (Alexa skill for temperature/chemistry readings; Google integration retired with conversational actions; Siri voice commands on iPhone) + Amazon Alexa skill store listing 'SENSE Pool Care Smart Monitor by WaterGuru' — Read on the maker's own site, verified 2026-07-17
    Backs: Amazon Alexa compatibility
  4. [4] smartthings: https://support.waterguru.com/hc/en-us + SmartThings partner search — Read on the maker's own site, verified 2026-07-17
  5. [5] waterguru.com (company confirmed ACTIVELY operating mid-2026 — live store, phone support, promos; no Sutro-style shutdown) — current SKUs SENSE 2 (~$349) and SENSE 3; no subscription; cassette consumables recurring — Read on the maker's own site, verified 2026-08-20
    Backs: Product identity, Market availability, Research status, Subscription
  6. [6] Negative check, stated explicitly: Home Assistant publishes no page at home-assistant.io/integrations/waterguru, and WaterGuru appears nowhere in Home Assistant's official index (checked 2026-07-21); the community custom integration is cited as the mechanism only — Read on the maker's own site, verified 2026-07-21
  7. [7] waterguru.com read 2026-08-10 — product page waterguru.com/products/waterguru-sense (rendered: 'WaterGuru SENSE S2', '$349', 'Sold Out') cross-checked against the storefront's machine-readable product record (the same machine-readable record already cited here, confirmed on the same read): title 'WaterGuru SENSE S2 Pool Monitor', handle 'waterguru-sense', sku 'WG-SENSE-S2', price $349.00, available: false; homepage banner 'Get 10% Off SENSE 3 + Free Shipping' names the newer generation — Read on the maker's own site, verified 2026-08-10
    Backs: Price, Product identity
  8. [8] waterguru.com/pages/waterguru-battery-replacement read 2026-08-11: 'Insert 4 new C size batteries from recommended brand.' · waterguru.com/pages/faq read the same day: 'WaterGuru recommends Energizer or Duracell C-size alkaline batteries' lasting 'approximately 6 months' (SENSE 1/2); 'Refillable cassettes contain enough pads for 60 reads, which typically lasts about 2 months', the C5 'lasts one month' and the C2 'lasts 2 months', and 'Unused cassettes have a storage life of approximately 1 year when stored correctly' — Read on the maker's own site, verified 2026-08-11
    Backs: Batteries, Works without the internet
  9. [9] waterguru.com/pages/faq read 2026-08-11: 'No. WaterGuru does not charge subscription fees. There are no ongoing software or service costs for using the device.' The same FAQ documents the cassettes as purchased consumables with published read counts and lifespans. — Read on the maker's own site, verified 2026-08-11
    Backs: Subscription
  10. [10] waterguru.com/pages/faq read 2026-08-11 (launch date; SENSE 2 vs SENSE 3 differences stated with the S2 supported, no end-of-life or cutoff language anywhere) · waterguru.com homepage read the same day ('Get 10% Off SENSE 3 + Free Shipping', 'Call Us 1-844-989-GURU (4878) M-F 9am-6pm PST') · waterguru.com/products/waterguru-sense machine-readable product record: title 'WaterGuru SENSE S2 Pool Monitor', sku 'WG-SENSE-S2', price $349.00, available: false, published_at 2023-05-25T01:01:42-07:00 · ⚠ support.waterguru.com refused our reader on 2026-08-11, and the refusal was not worked around — Read on the maker's own site, verified 2026-08-11
    Backs: Market availability, Service status, Research status
  11. [11] waterguru.com's SENSE product page, read 2026-08-20. It publishes complete in-box lists — SENSE S2: "WaterGuru SENSE S2", "SENSE S2 C5 Cassette", "4 'C' Batteries", "Float Ring for Spas and Above Ground Pools", "Quick Start Guide"; SENSE S3: "WaterGuru SENSE S3", "SENSE C5+ Cassette", "Quick Start Guide" — and directs users to the app, but states nothing about Wi-Fi, network setup, or what the device connects to. — Read on the maker's own site, verified 2026-08-20
    Backs: Required hub or bridge
  12. [12] No source was read for this entry. It records an edit so the edit is not silent, per the freshness guard's own instruction. — Re-checked this against its sources, verified 2026-08-20
  13. [13] Assessed 2026-08-22 across three surfaces. ① waterguru.com's FAQ, re-read 2026-08-22, on every voice path it documents: "You can link the WaterGuru skill in the Alexa app to ask about your pool's temperature and chemical readings"; that "Google removed support for conversational actions for Google Assistant and Google Home effective June 13, which retired the WaterGuru integration"; and that "WaterGuru supports Siri voice commands on iPhone". The same FAQ lists what the device measures — Free Chlorine, pH, Total Alkalinity, Cyanuric Acid, Calcium Hardness, water temperature and water flow on SENSE 2 and 3, with SENSE 1 measuring Free Chlorine, pH, temperature and flow. ② The community Home Assistant integration dwradcliffe/home-assistant-waterguru, read 2026-08-22 — "This is a Home Assistant integration for the WaterGuru Automated Smart Pool Water Monitor product", with the disclaimer "NOTE: This is not any kind of official integration or support. Use at your own risk." ③ The upstream client it depends on, bdwilson/waterguru-api, read the same day. — Read what the other company publishes, verified 2026-08-22
    Backs: Capabilities
  14. [14] https://waterguru.com/pages/faq (read 2026-09-09): 'The SENSE 1 and 2 use C-size batteries that last approximately 6 months. Battery life will vary depending on the brand of batteries used', and 'WaterGuru recommends Energizer or Duracell C-size alkaline batteries'. The site links https://apps.apple.com/us/app/waterguru/id1372295527 and https://play.google.com/store/apps/details?id=com.waterguru.android, and names no third mobile platform. — Read on the maker's own site, verified 2026-09-09
    Backs: App platforms, Power source
  15. [15] The WaterGuru pages read 2026-09-09 carry no band, 802.11 or frequency statement. The Wi-Fi bands stay blank: checked, and nothing found to publish. — Read on the maker's own site, verified 2026-09-09
  16. [16] WaterGuru's own pages, re-read 2026-09-12, on a host that had not refused us: waterguru.com/products/waterguru-sense (and the store's machine-readable product data), waterguru.com/pages/faq ('A prior outage, caused when Amazon unintentionally removed the WaterGuru skill, was resolved on October 3, 2024.'), waterguru.com/pages/waterguru-battery-replacement, waterguru.com/collections/all. Home Assistant still publishes no page at home-assistant.io/integrations/waterguru. — Read on the maker's own site, verified 2026-09-12
  17. [17] the record's own customer-facing prose fields as they stood before 2026-09-13 (no new external read), verified 2026-09-13
  18. [18] WaterGuru's own published questions and answers, read 2026-09-16, under the heading 'Installation, Setup, and Wi-Fi'. Quoted as published: 'How do I set up the SENSE and connect it to Wi-Fi? Place the SENSE on your skimmer while pairing. The WaterGuru app connects to the device via Bluetooth and walks you step-by-step through connecting the SENSE to your home Wi-Fi network.' · 'What Wi-Fi signal strength does the SENSE need? You need active Wi-Fi at the pool area where the SENSE will be installed. The device works best with at least two bars of Wi-Fi signal at the install location.' · and, under measurements, 'Open the WaterGuru app and tap "Measure Now." If you are within Bluetooth range of your SENSE, the measurement will take about 10 minutes to complete.' The same page names models where they differ — 'The earlier SENSE S1 does not support hot tubs or spas', 'included in S2', 'The SENSE 1 and 2 use C-size batteries' — so it speaks about this generation rather than about the brand in general. — Read on the maker's own site, verified 2026-09-16
    Backs: Protocols, Required hub or bridge
  19. [19] Two WaterGuru pages read 2026-09-16. ① The store's machine-readable record for this product: 'WaterGuru SENSE S2 Pool Monitor', part number WG-SENSE-S2, $349.00, no compare-at price, in stock false, first published 2023-05-25. ② WaterGuru's own published questions and answers, which still describe the SENSE 1, SENSE 2 and SENSE 3 side by side — 'The SENSE 2 and 3 measures Free Chlorine, pH, Total Alkalinity, Cyanuric Acid, and Calcium Hardness, and works in pools, hot tubs, spas, swim spas, endless pools', 'The SENSE 1 and 2 use C-size batteries that last approximately 6 months' — and state, under 'Pricing, Warranty, and Returns': 'Is there a subscription fee? No. WaterGuru does not charge subscription fees. There are no ongoing software or service costs for using the device.' and 'What is the warranty? The WaterGuru SENSE comes with a 1-year warranty and a 30-day money-back guarantee.' No end-of-life, discontinuation or cutoff wording appears anywhere on either page. — Read on the maker's own site, verified 2026-09-16
    Backs: Price, Market availability, Service status, Research status
  20. [20] this record's own lifecycle note as it stood before 2026-09-19 (no new external read): its wording was rewritten so it reads in plain language. No fact, date, source or value changed, and the earlier wording is kept on this record., verified 2026-09-19
  21. [21] WaterGuru's own support article, 'Google Home Integration - WaterGuru won't be available starting June 13th', read 2026-09-19 through WaterGuru's own help-centre search on support.waterguru.com (article 16241944529307, last updated 2026-07-13). Quoted as published: 'WaterGuru has been advised by Google that the existing integration of WaterGuru with Google Home will be terminated starting June 13th, 2023. This is not a decision by WaterGuru, but rather a decision by Google.' The article closes: 'Note: WaterGuru does continue to provide support for voice commands for customers who have iPhones using Siri and for customers who have Alexa devices.' — Read on the maker's own site, verified 2026-09-19
    Backs: Google Home compatibility
  22. [22] WaterGuru's own support article, 'How do I connect my WaterGuru SENSE device to Siri?', read 2026-09-19 through WaterGuru's own help-centre search on support.waterguru.com (article 8446430571163, last updated 2026-07-07). Quoted as published: 'If you are using an iPhone you can connect your WaterGuru to Siri and use Siri Shortcuts to ask Siri about your pool conditions.' The steps run 'Launch the WaterGuru app on your iPhone — Tap Settings — Siri Integration', and the two configured shortcuts are named: 'How's my Pool?' and 'What's my Water Temperature?'. A case-insensitive scan of the whole article returned zero occurrences of HomeKit, Apple Home, Home app, accessory and Matter. — Read on the maker's own site, verified 2026-09-19
    Backs: Apple Home compatibility
  23. [23] WaterGuru's own help centre on support.waterguru.com, searched 2026-09-19 through the site's own search route: a query for SmartThings returns zero articles, while queries for Google and for Siri return the articles this record now cites for those platforms. So the silence is real and it sits on no single page — the same search route is not itself a citation, and no Samsung-side page naming this monitor was located. — Read on the maker's own site, verified 2026-09-19
    Backs: SmartThings compatibility
  24. [24] WaterGuru's own store listing for the WaterGuru SENSE S2 Pool Monitor, read 2026-09-24. The listing sells a single version and gives it the part code WG-SENSE-S2 and the retail barcode 00850011421352. — Read on the maker's own site, verified 2026-09-24
    Backs: Certification and product IDs
  25. [25] WaterGuru's battery-replacement page, read in full on 2026-09-29. Verbatim, in both the SENSE Gen 2 and SENSE Gen 1 instructions: "Insert 4 new C size batteries from recommended brand"; Gen 2: "The Battery compartment is located within the inner section of the WaterGuru SENSE skimmer cover." — Read the original source directly, verified 2026-09-29
  26. [26] WaterGuru's own store, the structured product record for this listing, read on 2026-10-03: title "WaterGuru SENSE S2 Pool Monitor", one variant with sku "WG-SENSE-S2", a price of $349.00 with no compare-at price, and the listing marked as not available to buy. — Read on the maker's own site, verified 2026-10-03
    Backs: Price, Certification and product IDs, Market availability
  27. [27] WaterGuru's own SENSE 2 product page, read in full on 2026-10-03. "SENSE 2 for Pools & Spas" · "Fits round skimmer openings between 8.25" and 9.4"" · "Includes float ring for hot tubs and above ground pools" · "Choose SENSE Model SENSE 2 SENSE 3" · "$349 Sold Out". — Read on the maker's own site, verified 2026-10-03
    Backs: Product identity
  28. [28] WaterGuru's own FAQ, read in full on 2026-10-03. "Open the WaterGuru app and tap “Measure Now.” If you are within Bluetooth range of your SENSE, the measurement will take about 10 minutes to complete." · "No. WaterGuru pool data is only available through the WaterGuru app on iOS and Android. There is no desktop or web dashboard." · "The SENSE 1 and 2 use C-size batteries that last approximately 6 months." · "Unused cassettes when stored properly have a shelf life of 2 years." · "The SENSE mounts on your skimmer with its sensor dangling down into the skimmer basket area, where water is actively flowing. If your pool does not have a compatible skimmer, or for above-ground pools and hot tubs, use the included Float Ring so the SENSE floats directly in the water." · "Place the SENSE on your skimmer while pairing. The WaterGuru app connects to the device via Bluetooth and walks you step-by-step through connecting the SENSE to your home Wi-Fi network." · "Yes. You can link the WaterGuru skill in the Alexa app to ask about your pool’s temperature and chemical readings." · "No, not anymore. Google removed support for conversational actions for Google Assistant and Google Home effective June 13, which retired the WaterGuru integration." · "No. WaterGuru does not charge subscription fees. There are no ongoing software or service costs for using the device." — Read on the maker's own site, verified 2026-10-03
    Backs: Subscription, App platforms, Power source, Batteries, Protocols, Installation, Amazon Alexa compatibility, Google Home compatibility, Service status, Research status
  29. [29] WaterGuru's own 'All' product listing, read in full on 2026-10-03: "SENSE S2 Pool Monitor for Pools & Hot Tubs $349 Out of Stock SENSE S3 Pool Monitor for Pools & Hot Tubs $359.10 $399 Sale". — Read on the maker's own site, verified 2026-10-03
  30. [30] WaterGuru's battery-replacement page, read in full on 2026-10-03. Gen 2: "Remove SENSE from your skimmer." · "Insert 4 new C size batteries from recommended brand." · "Place the lower Cassette / Sensor unit (inside the mesh bag) back in the skimmer with the SENSE cover on top of the skimmer." — Read on the maker's own site, verified 2026-10-03
    Backs: Batteries, Installation
  31. [31] Home Assistant's integration address for WaterGuru, home-assistant.io/integrations/waterguru, read on 2026-10-03: Home Assistant serves its not-found page there, so it publishes no WaterGuru integration page., verified 2026-10-03
  32. [32] Home Assistant's documentation has no page at the address it uses for a built-in WaterGuru integration, checked on 2026-10-04 ("Oh no! This page does not exist"), so we could not find an official Home Assistant listing for WaterGuru., verified 2026-10-04
    Backs: Home Assistant compatibility
  33. [33] WaterGuru's own FAQ, read in full on 2026-10-15 (9,532 characters). "No. WaterGuru pool data is only available through the WaterGuru app on iOS and Android. There is no desktop or web dashboard." · "The SENSE 1 and 2 use C-size batteries that last approximately 6 months." · "Place the SENSE on your skimmer while pairing. The WaterGuru app connects to the device via Bluetooth and walks you step-by-step through connecting the SENSE to your home Wi-Fi network." · "Yes. You can link the WaterGuru skill in the Alexa app to ask about your pool’s temperature and chemical readings." · "No, not anymore. Google removed support for conversational actions for Google Assistant and Google Home effective June 13, which retired the WaterGuru integration." · "No. WaterGuru does not charge subscription fees. There are no ongoing software or service costs for using the device." — Read on the maker's own site, verified 2026-10-15
    Backs: Subscription, App platforms, Power source, Batteries, Protocols, Installation, Amazon Alexa compatibility, Google Home compatibility, Service status
  34. [34] WaterGuru's own FAQ, read in full on 2026-10-15. "Does the SENSE work with Siri? Yes. WaterGuru supports Siri voice commands on iPhone." — Read on the maker's own site, verified 2026-10-15
  35. [35] WaterGuru's product address for the SENSE, read in full on 2026-10-15 (13,648 characters). The page is now titled "WaterGuru SENSE S3 - Smart Pool Monitoring System", describes "SENSE 3 for Pools & Spas", and its price block reads "Save 10% $359.10 $399 Add To Cart". The 'Choose SENSE Model' selector and the '$349 Sold Out' block the 2026-10-03 read quoted are gone. The SENSE S2 is still named in the 'What's in the Box?' section ("SENSE S2 WaterGuru SENSE S2 SENSE S2 C5 Cassette 4 “C” Batteries Float Ring for Spas and Above Ground Pools Quick Start Guide") and in the page's questions. — Read on the maker's own site, verified 2026-10-15
  36. [36] WaterGuru's own 'All' product listing, read in full on 2026-10-15 (1,460 characters). It lists one product: "SENSE S3 Pool Monitor for Pools & Hot Tubs $359.10 $399 Sale". The SENSE S2 line the 2026-10-03 read quoted ('$349 Out of Stock') is not on the listing. — Read on the maker's own site, verified 2026-10-15
  37. [37] The storefront's structured product record for the SENSE (the address this entry cites) was not found on 2026-10-15, on a plain read and then on a status read, where the same address answered on 2026-10-03., verified 2026-10-15
  38. [38] WaterGuru's battery-replacement page, read in full on 2026-10-15 (3,419 characters). "Remove SENSE from your skimmer." · "Insert 4 new C size batteries from recommended brand." — Read on the maker's own site, verified 2026-10-15
    Backs: Batteries, Installation
  39. [39] Home Assistant's integration address for WaterGuru, www.home-assistant.io/integrations/waterguru, read on 2026-10-15: Home Assistant serves its not-found page there, so it still publishes no WaterGuru integration page., verified 2026-10-15
  40. [40] WaterGuru's product address for the SENSE, read in full on 2026-10-16 (13,648 characters). The page is titled "WaterGuru SENSE S3 - Smart Pool Monitoring System", describes "SENSE 3 for Pools & Spas", and its only price block reads "Save 10% $359.10 $399 Add To Cart". There is no SENSE 2 selector, no SENSE 2 price and no SENSE 2 cart anywhere on the page. The SENSE S2 is still named in the 'What's in the Box?' section and in the page's questions. WaterGuru's 'All' listing, read the same day (entry bq736a-20261016-waterguru-listing), lists only "SENSE S3 Pool Monitor for Pools & Hot Tubs $359.10 $399 Sale". — Read on the maker's own site, verified 2026-10-16
    Backs: Market availability, Price, Research status
  41. [41] WaterGuru's own 'All' product listing, read in full on 2026-10-16 (1,460 characters). It lists one product: "SENSE S3 Pool Monitor for Pools & Hot Tubs $359.10 $399 Sale". No SENSE S2 line appears. — Read on the maker's own site, verified 2026-10-16
  42. [42] The storefront's structured product record for the SENSE (the address this entry cites) was not found on 2026-10-16, on a status read, as on 2026-10-15., verified 2026-10-16

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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