Sonoff Hydro ONE SWV-ZFE ZigBee Water Valve with Flow Meter

The Sonoff Hydro ONE SWV-ZFE is an intelligent ZigBee water valve with an integrated flow meter for fully automatic garden and outdoor irrigation. The valve is directly screwed between the faucet and hose and transforms any conventional tap into a smart irrigation system. The EU version features a G3/4-14 BSP thread (3/4 inch) and thus fits the garden connections common in Switzerland and Europe. The integrated flow meter records flow rates from 2 to 45 L/min and enables not only time-based but also volume-based irrigation, where the valve automatically closes after reaching the set water amount.

Recommended Accessories:

• Sonoff Dongle Max Zigbee and Thread PoE Dongle
• Home Assistant Green
• Home Assistant Connect ZBT-2 Zigbee 3.0 & Thread USB Adapter

Features:

• ZigBee 3.0 and Bluetooth Low Energy proximity mode enable control with or without a gateway
• Integrated flow meter records 2 to 45 L/min and enables volume-based irrigation with automatic shut-off
• Brass water inlet offers high corrosion resistance and durability under constant water pressure
• Up to six irrigation schedules with cycles, weather rules, and seasonal adjustments save water and effort
• Safety features warn in real-time about low battery, water shortage, leakage, and frost risk
• IP55 protection rating and battery operation with four AA cells allow flexible outdoor mounting without a power connection

Application Examples:

• Automatic garden irrigation with time or volume-based schedules
• Drip irrigation in greenhouses and raised beds with precise water volume control
• Water consumption monitoring with detailed statistics and export function
• Smart home integration in Home Assistant with Zigbee2MQTT for custom automations
• Remote-controlled lawn irrigation with weather-based skipping in case of rain

Documentation:

• Sonoff Support (Hydro ONE)
• User Manual (PDF)

Technical Data:

• Manufacturer: Sonoff
• Manufacturer SKU: SWV-ZFE
• EAN: 6979033600300
• Product Series: Hydro Series
• MCU: TLSR8656
• Power Supply: 6 V DC (4× 1.5 V AA batteries)
• Radio Protocols: ZigBee 3.0, BLE (Bluetooth Low Energy)
• Thread: G3/4-14 BSP (3/4 inch), EU version
• Inlet Material: Brass
• Housing Material: PC+ABS
• Flow Measurement Range: 2 to 45 L/min
• Minimum Flow: 5 L/min (below that water shortage detection)
• Operating Water Pressure: 0.06 to 0.8 MPa
• Irrigation Schedules: up to 6
• Protection Rating: IP55
• Operating Temperature: 5 °C to 60 °C
• Water Temperature: 5 °C to 40 °C
• Humidity: 5 to 95 % RH, non-condensing
• Mounting: vertical recommended
• Compatibility: eWeLink, Home Assistant, Zigbee2MQTT, Apple Home via Matter Bridge, Alexa, Google Home
• Product Dimensions: 152 × 100 × 46 mm
• Package Dimensions: 163 × 105 × 50 mm
• Gross Weight: 372 g

Scope of Delivery:

• 1× Sonoff Hydro ONE SWV-ZFE ZigBee water valve with flow meter