
A two-outlet timer on the tap waters the vegetable patch and the lawn at different times and for different lengths, and two soil moisture sensors, one per zone, skip the cycle where the ground is already wet. It is run from the eWeLink app, with Alexa and Google too, with the Sonoff Zigbee bridge included.
What it does
- The Sonoff Hydro DUO timer screws onto the tap and has two independent outlets: one for the vegetable patch, one for the lawn.
- Each output has its own times and duration, for example long runs on the drippers for the vegetable patch and a short one on the lawn sprinkler.
- The two Sonoff MS01 sensors measure soil moisture in each zone.
- If one zone is already wet, its slot is skipped while the other is watered as normal.
- You can open either of the two zones by hand from the app, even when you are away.

How it is installed
What's in the kit

| Qty | Item | Unit price | Subtotal |
|---|---|---|---|
| 1 | Sonoff ZB Bridge Pro Zigbee hubCoordinator / gateway | 33,99 € | 33,99 € |
| 1 | Sonoff Hydro DUO 2-zone irrigation timer (AA)Irrigation / valve | 48,08 € | 48,08 € |
| 2 | Sonoff MS01 IP55 soil sensorSoil sensor | 25,90 € | 51,80 € |
| 1 | 5V 2A USB power supplies, 3 piecesAccessory: power · needed because the device comes without a power supply | 10,99 € | 10,99 € |
| Kit total | 144,86 € |
Prices taken from Amazon.it on 22/09/2026: they can change, and the price Amazon shows at the time of purchase is the one that applies.
Add the whole kit to your Amazon basket4 items, 5 pieces · optional extras are added from the individual linksDelivery, returns and warranty: Amazon shows these when you buy.
Before you order
Do you need a hub?
Yes: the Sonoff Zigbee devices talk to the ZB Bridge Pro included in the kit, which links them to the home 2.4GHz Wi-Fi and to the eWeLink app. Without the bridge, the timer and the sensors cannot be controlled from the app.
Does it work with Alexa and Google?
Yes, through the eWeLink app: you link the account to the Alexa skill or to the Google Home app and can start the watering or ask for the status by voice. With Apple Home there is no direct integration we can guarantee for every item in the kit.
Do you need an electrician?
No. The timer screws onto the tap, the sensors push into the soil and the bridge runs off a USB power supply indoors. No electrical work and nothing to change on the water system.
Can the two zones water at the same time?
Each output is programmed independently. It is better, though, to run the zones one after the other: with a single tap the pressure is shared, and the lawn sprinkler may not reach its rated throw while the vegetable patch is running as well.
What happens if there is no internet?
With no internet you cannot control the timer from outside and you get no notifications. Check in the app how the scheduled runs behave without a connection: some schedules may stay active, as the manufacturer states. When the line comes back everything resumes.
Are batteries included?
The Hydro DUO timer runs on AA cells and the MS01 sensors on batteries: the type, and whether they come in the box, is stated by the manufacturer on the Amazon listing. The charge level shows in eWeLink; check it at the start of the season.
Can I add devices?
Yes: more soil sensors, a second timer for another tap or an outdoor temperature and humidity sensor. The bridge handles plenty of Sonoff Zigbee devices in the same app.
What do I need to do in winter?
Before the frost, take the timer off the tap, drain it and store it indoors with the hoses, as you would with any tap timer. The soil sensor can stay in the ground within the limits the manufacturer gives, or come in and go back out in spring.
What if a product is out of stock on Amazon?
An item can go out of stock or change version. Get in touch through the contact page quoting the kit code: we will point you to an alternative that works with the other devices and with the coordinator, so the kit stays complete and performs as intended.
Notes
Not included
- Hoses, fittings, drippers and sprinklers
- AA batteries for the timer, if not supplied in the box
- A router and an internet connection
- USB power supply for the bridge
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