--- title: A dual-zone BLE and Zigbee water valve tested with... description: A hands-on review of the SONOFF Hydro DUO (SWV-ZF2E), a dual-channel Zigbee 3.0 and Bluetooth 5 LE smart water valve with a built-in flow meter,... canonical: https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: A dual-zone BLE and Zigbee water valve tested with eWelink and Home Assistant | daily.dev og:description: A hands-on review of the SONOFF Hydro DUO (SWV-ZF2E), a dual-channel Zigbee 3.0 and Bluetooth 5 LE smart water valve with a built-in flow meter,... og:url: https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd og:image: https://api.daily.dev/og/posts/34DDpgNQd.png og:image:alt: A dual-zone BLE and Zigbee water valve tested with eWelink and Home Assistant og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # A dual-zone BLE and Zigbee water valve tested with eWelink and Home Assistant **[CNX Software](https://daily.dev/sources/cnx-software)** · [@cnxsoft](https://daily.dev/cnxsoft) · 11 min read · 0 upvotes · 0 comments ## Summary A hands-on review of the SONOFF Hydro DUO (SWV-ZF2E), a dual-channel Zigbee 3.0 and Bluetooth 5 LE smart water valve with a built-in flow meter, leak/battery/water-shortage alerts, and support for up to 12 watering schedules. The reviewer covers unboxing, manual operation without any app, pairing via Bluetooth Proximity Mode, pairing via Zigbee through a SONOFF NSPanel Pro Gen2 gateway, and integration with Home Assistant via a SONOFF Dongle-M. An automation was built to start and stop irrigation based on readings from a XIAO Soil Moisture Sensor. The review notes firmware bugs that initially prevented pairing (later fixed), that Home Assistant does not expose all entities available in eWeLink (e.g. water flow data is missing), and that Zigbee mode unlocks more features than Bluetooth Proximity mode. The device costs $46.90 and comes in BSP (EU/UK) and NH (US) thread variants. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Can the SONOFF Hydro DUO water valve be used with Home Assistant without a Zigbee gateway app like eWeLink? Yes, the SONOFF Hydro DUO can be paired directly with Home Assistant using a Zigbee coordinator such as a SONOFF Dongle Max (Dongle-M) connected via USB, without needing the eWeLink app. Once paired, Home Assistant exposes switches for channels A and B, allowing automations such as triggering irrigation from a soil moisture sensor, though Home Assistant does not expose all entities, notably water flow data is missing. _See how daily.dev surfaces real integration quirks like missing entities before you commit to a smart valve._ ### What is the difference between Zigbee Gateway mode and Proximity Bluetooth mode on the SONOFF Hydro DUO water valve? Zigbee Gateway mode enables all features of the SONOFF Hydro DUO, while Proximity (Bluetooth) mode offers a more limited feature set and requires the smartphone to be within 10 meters of the device. Proximity mode is intended for users without a Zigbee gateway, and still supports manual irrigation, scheduling, seasonal adjustments, alerts, and child lock, but Zigbee is recommended whenever possible. _Track hands-on comparisons like this one on daily.dev before choosing between connectivity modes for a smart device._ ### How can I automate plant watering with Home Assistant based on soil moisture readings? An automation can trigger a smart water valve switch when a soil moisture sensor entity changes state to 'Dry', and turn it off when the entity reads 'Normal'. Using a XIAO Soil Moisture Sensor's 'Soil Moisture Status' entity alongside a SONOFF Hydro DUO's Switch A, two automations were built in Home Assistant's Settings > Automations & Scenes: one to turn on watering when dry, one to turn it off when normal. _Find practical Home Assistant automation walkthroughs like this on daily.dev when building your own setup._ ## Similar posts on daily.dev - [Home Assistant waters my plants\!](https://daily.dev/posts/home-assistant-waters-my-plants--i0o9wij2e) · Hacker News · 0 upvotes · 0 comments - [SONOFF BASIC-1GSP Matter over WiFi smart switch supports DIN rail mounting, real-time energy monitoring](https://daily.dev/posts/sonoff-basic-1gsp-matter-over-wifi-smart-switch-supports-din-rail-mounting-real-time-energy-monitor-wdwzijxsu) · CNX Software · 0 upvotes · 0 comments - [I replaced five smart home hubs with a $30 Zigbee dongle and never looked back](https://daily.dev/posts/i-replaced-five-smart-home-hubs-with-a-30-zigbee-dongle-and-never-looked-back-dlgvyqtyz) · XDA Developers · 0 upvotes · 0 comments - [SONOFF NSPanel Pro Gen2 touch control panel review with eWeLink and Home Assistant](https://daily.dev/posts/sonoff-nspanel-pro-gen2-touch-control-panel-review-with-ewelink-and-home-assistant-2w8coms2p) · CNX Software · 0 upvotes · 0 comments - [Hacking A Reverse Osmosis Water Filter Through Its Smart Faucet](https://daily.dev/posts/hacking-a-reverse-osmosis-water-filter-through-its-smart-faucet-ipy1umx9i) · Hackaday · 0 upvotes · 0 comments --- Tags: [#tech-news](https://daily.dev/tags/tech-news), [#iot](https://daily.dev/tags/iot), [#bluetooth](https://daily.dev/tags/bluetooth) [View this post on daily.dev](https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"A dual-zone BLE and Zigbee water valve tested with eWelink and Home Assistant","url":"https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd"},"datePublished":"2026-08-17T15:00:11.402Z","dateModified":"2026-08-18T11:00:20.247Z","description":"A hands-on review of the SONOFF Hydro DUO (SWV-ZF2E), a dual-channel Zigbee 3.0 and Bluetooth 5 LE smart water valve with a built-in flow meter,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4fbf3e50d21edec59a085aee52284535?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4fbf3e50d21edec59a085aee52284535?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"CNX Software","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"CNXSoft","url":"https://daily.dev/cnxsoft","image":"https://avatars.githubusercontent.com/u/1366138?v=4","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":490}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"tech-news,iot,bluetooth","timeRequired":"PT11M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"CNX Software","item":"https://daily.dev/sources/cnx-software"},{"@type":"ListItem","position":3,"name":"A dual-zone BLE and Zigbee water valve tested with eWelink and Home Assistant"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/a-dual-zone-ble-and-zigbee-water-valve-tested-with-ewelink-and-home-assistant-34ddpgnqd#faq","mainEntity":[{"@type":"Question","name":"Can the SONOFF Hydro DUO water valve be used with Home Assistant without a Zigbee gateway app like eWeLink?","acceptedAnswer":{"@type":"Answer","text":"Yes, the SONOFF Hydro DUO can be paired directly with Home Assistant using a Zigbee coordinator such as a SONOFF Dongle Max (Dongle-M) connected via USB, without needing the eWeLink app. Once paired, Home Assistant exposes switches for channels A and B, allowing automations such as triggering irrigation from a soil moisture sensor, though Home Assistant does not expose all entities, notably water flow data is missing. 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