SONOFF Hydro DUO — Dual-Channel Zigbee Smart Water Valve with Flow Meter (SWV-ZF2E)

R 1,490.00

In Stock — 20 available

R 1,490.00 SONOFF Hydro DUO — Dual-Chann…

💧 SONOFF Hydro DUO — Dual-Channel Zigbee Smart Water Valve with Flow Meter (SWV-ZF2E)

Two zones, one valve. The Hydro DUO is a dual-channel Zigbee 3.0 smart water valve with a built-in flow meter — run two irrigation zones from a single tap, each with its own schedules, volumes and seasonal settings. Supports duration-based and volume-based watering with up to 12 schedules (6 per channel), weather-based pause, and seasonal multipliers per zone. Brass quick-connect inlet with BSP ¾" thread — standard for South African garden taps. Powered by 4 × AA batteries or USB-C (solar panel compatible). IP65-rated for outdoor use. MPN: SWV-ZF2E.

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2 Zones

Dual Channel

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Zigbee 3.0 + BLE

Dual Comms

🌱 One tap, two zones. Split your garden into two independent irrigation zones — lawn on one channel, beds or veggie patch on the other — each with its own schedules, target volumes and seasonal adjustment. Channels run one at a time to keep water pressure healthy.

⚡ Key Features

Two Independent Channels — two outlets with separate schedules, volumes and usage tracking; channels interlock (one open at a time) to prevent pressure drops
Built-in Flow Meter — real-time water usage (2–45 L/min detection); view and export up to 6 months of usage per zone
Volume-Based Watering — irrigate by litres per zone; auto shut-off when the target is reached, with a failsafe time limit
12 Watering Schedules — 6 per channel: odd/even day, interval, or custom weekday cycles, stored locally so they run without a network
Weather-Based Pause — automatically pauses schedules when severe weather is expected within 24 hours
Seasonal Adjustment — monthly watering multipliers per zone for the right amount year-round
Brass Quick-Connect Inlet — corrosion-resistant brass inlet with tool-free anti-slip fitting; BSP G3/4-14 (¾") thread fits standard SA garden taps
Flexible Power — 4 × AA batteries (±1 year at 2 × 30 min/day) or USB-C 5V; pair with a USB-C solar panel for set-and-forget power
Dual Communication — Zigbee 3.0 for smart home integration + BLE proximity mode for direct phone control without a gateway
Safety Alerts — low battery, water shortage, frost risk and leakage alerts; auto shut-off on water shortage; child lock
IP65 Weatherproof — built for outdoor garden installation
Voice Control — Alexa and Google Home via gateway; Apple Home via a SONOFF Matter Bridge (ZBBridge-U or iHost)
Open-Source Ready — Home Assistant (ZHA / Zigbee2MQTT) supported; fully local control with your own coordinator

🏠 Perfect For

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Two-Zone Gardens

Lawn and flower beds have different needs — give each its own channel, schedule and volume target from one tap.

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Veggie Patches & Greenhouses

Volume-based watering per zone keeps moisture consistent. Track every litre each zone uses.

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Off-Grid & Solar Setups

USB-C power input takes a solar panel with built-in battery — no battery changes, no load-shedding worries.

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Holiday & Remote Control

Manage both zones from anywhere via the app. Schedules are stored locally, so watering carries on even if the network drops.

💡 Which Hydro do I need? Hydro DUO (SWV-ZF2E) — two zones + flow meter + USB-C/solar power. Hydro ONE (SWV-ZFE) — one zone + flow meter. Hydro ONE Lite (SWV-ZNE) — one zone, no flow meter, duration-based only. All three fit standard SA ¾" garden taps.

⚠️ Installation notes: Vertical installation is recommended for best flow-meter accuracy. Channels open one at a time by design. Not suitable for drinking water — designed for garden irrigation with standard tap water. Batteries are not included. This is the EU/BSP version (SWV-ZF2E) with G3/4-14 thread — the US SWV-ZF2U version is not interchangeable.

📡 Don't have a Zigbee hub yet? Pair this with our SONOFF ZBBridge-P, Dongle Max or iHost — all stocked at Eiferer. The Hydro DUO also works without a gateway in BLE proximity mode.

📋 Technical Specifications

Product	SONOFF Hydro DUO
MPN / Model	SWV-ZF2E (EU/BSP version)
Product Series	Hydro Series
Type	Dual-Channel Zigbee Smart Water Valve with Flow Meter
Channels	2 independent outlets (one open at a time)
Protocol	Zigbee 3.0 + BLE (Bluetooth Low Energy)
MCU	TLSR8258F1KAT32
Flow Meter	Yes — 2 to 45 L/min detection range (below 5 L/min reports as No Water)
Schedules	12 total (6 per channel), stored locally
Thread Type	BSP G3/4-14 (¾" British Standard Pipe)
Power	4 × AA (1.5V, not included) or USB-C 5V/1A; USB-C takes priority; solar panel compatible
Battery Life	±1 year at 2 × 30 min watering/day
Water Pressure Range	0.06–0.8 MPa
IP Rating	IP65
Water Temperature	5°C to 40°C
Operating Temperature	0°C to 50°C
Operating Humidity	5–95% RH (non-condensing)
Dimensions	121 × 132 × 67 mm
Casing Material	ABS with brass inlet
Coordinator Required	Any Zigbee 3.0 coordinator (or BLE proximity mode without gateway)
Works With	eWeLink (via ZBBridge) · Home Assistant · SmartThings · Amazon Alexa · Google Home · Apple Home (via Matter Bridge)
Warranty	2 Year Manufacturer Warranty

📦 What's in the Box

1 x Hydro DUO Dual-Channel Smart Water Valve (SWV-ZF2E)
1 x Filter Washer
1 x Quick Start Guide
Batteries not included — 4 × AA required (or power via USB-C)

❓ Frequently Asked Questions

Can both channels run at the same time?

No — by design. Channels interlock so only one is open at a time, which protects your water pressure. Schedules on the two channels queue automatically.

Do I need a Zigbee hub?

For full smart home integration, yes. But the Hydro DUO also supports BLE proximity mode — connect your phone directly via Bluetooth, no gateway needed. For scheduling, automation and remote access you'll need a Zigbee coordinator.

Will it fit my South African garden tap?

Yes. This is the SWV-ZF2E (EU/BSP version) with G3/4-14 (¾") British Standard Pipe thread — the standard on South African garden taps.

Can I power it with solar?

Yes. The USB-C input (5V) accepts a solar panel with a built-in battery. When USB-C and batteries are both connected, USB-C takes priority.

What's the difference between Hydro DUO, ONE and ONE Lite?

Hydro DUO (SWV-ZF2E): two zones, flow meter, USB-C/solar power. Hydro ONE (SWV-ZFE): one zone with flow meter. Hydro ONE Lite (SWV-ZNE): one zone, no flow meter. All are Zigbee 3.0 + BLE and fit ¾" BSP taps.

Can it be used for drinking water?

Not recommended. Designed for garden irrigation with standard tap water.

Does it work fully local (no cloud)?

Yes — with Home Assistant + ZHA or Zigbee2MQTT, control is 100% local, and schedules are stored on the valve itself so they run even with no network at all.