SONOFF Zigbee 2-Zone Sprinkler Timer — Brass Inlet, IP65 Weather-Adaptive, Type-C + AA Backup, Built-In Flow Meter

SONOFF SWV-ZF2U Hydro DUO is a Zigbee-connected two-zone sprinkler timer with brass inlet, built-in flow meter, weather-adaptive scheduling and dual power options for reliable garden irrigation control.

This compact smart valve replaces a manual sprinkler or irrigation controller for two separate lines, letting you automate, monitor and adapt watering via a Zigbee hub and compatible smart home platforms. It combines a heavy-duty brass inlet and IP65-rated casing with cloud-capable features like volumetric watering, historical water-use records and safety alerts so you can optimize outdoor watering while avoiding waste.

How do I set up and power the Hydro DUO?

Setup requires a Zigbee 3.0 compatible hub (Home Assistant and other hubs supported) to expose the device in your smart home. Power options include a Type-C connector for mains-adapter power and a backup of four AA batteries that preserve schedules and let the timer run during outages.

• Connect SONOFF Hydro DUO to a Zigbee hub and add through the hub’s device discovery.
• Hand-tighten the premium brass inlet—anti-slip design eases installation without special tools.
• Use Type-C for continuous power; install 4 AA batteries as a secondary power source.

What scheduling and watering modes are available?

The Hydro DUO supports flexible timing for each of its two outlets, with up to six independent schedules per outlet (12 total). Choose between time-based runs or volumetric (water-amount) mode and enable seasonal or weather-based adjustments for smarter watering.

• Create up to 6 schedules per outlet for staggered or repeated watering cycles.
• Switch between timed duration and volumetric mode to dispense a set water volume.
• Apply weather or seasonal adjustments to reduce watering during rain or cooler periods.

How does the Hydro DUO help me track and save water?

A built-in flow meter logs both runtime and volume so you can review precise consumption over days, months or up to six months of history. These records help identify leaks, overwatering or inefficient zones and inform adjustments to schedules for better water stewardship.

• Flow meter records per-event and cumulative water usage automatically.
• Downloadable history (daily, monthly, six-month) for irrigation planning and troubleshooting.
• App alerts notify you of abnormal consumption, leaks or dry-run conditions.

What safety and durability features protect the system?

The Hydro DUO is designed for outdoor use with IP65 protection, frost and leak detection, plus multi-layer safety limits. Real-time alerts through the app warn of low battery, leaks or water shortage and the valve can auto-shutoff at critical battery levels to prevent uncontrolled watering.

• IP65-rated enclosure resists rain, dust and typical garden conditions.
• Child-lock prevents accidental local operation while remote control remains enabled.
• Auto shutoff and app alerts for leaks, frost risk and low-battery conditions.

Who is this for? The SONOFF SWV-ZF2U Hydro DUO is aimed at homeowners, gardeners and small property managers who want a robust, smart two-zone irrigation controller that integrates with Zigbee ecosystems like Home Assistant. It’s ideal if you need accurate water tracking, flexible scheduling, and a durable hardware interface (brass inlet, IP65) that withstands outdoor conditions while offering both mains and battery power for resilient, year-round irrigation control.