Introduction

SONOFF Zigbee Smart Water Valve

User Manual

A dual-channel smart water valve supporting Zigbee 3.0 and proximity dual communication modes, powered by 4 AA batteries for easy installation. It can be controlled remotely via an app, supports scheduled and volume-based watering, and scene linkage. With a built-in flow meter, it tracks 6 months of watering history and provides abnormal alerts. It also features weather-adaptive watering, adjusting watering based on weather changes for better water and cost efficiency.

Dual-Mode Connectivity

Brass Water Inlet

Timed / Volume-based Schedule

Rain Delay

6-Month History

Weather-based Adjustment

Scene Linkage

Abnormal Alert

Child Lock

 

① Inlet

② LED indicator (Green/Red)

  • Keeps off: Zigbee/BLE connection normal
  • Green slow flash: The device is in pairing mode. (Pairing time: 3 minutes)
  • Stops slow flashing and remains off: Pairing failure/timeout.
  • Green quick flash once: Turn on the valve.
  • Red quick flash once: Turn off the valve.
  • Green quick flash twice: Child Lock off
  • Red quick flash twice: Child Lock on.

③ Button

  • Single press: Turn on/off the device.
  • Press and hold any button for 5 seconds: The device enters pairing mode.
  • Press and hold both buttons for 2 seconds: Turn off the Child Lock.
  • Press and hold any button for 10 seconds: Factory Reset.

④ Outlet

⑤ Battery Cover

Platform Certification
Specification
Hydro DUO

Product series

Hydro Series

Product name

Zigbee Smart Water Valve

Model

SWV-ZF2U/SWV-ZF2E

MCU

TLSR8258F1KAT32

Input

Type C: 5V⎓1A or Battery: 3V⎓（4*1.5V AA，2S2P）

Connectivity

Zigbee 3.0/ BLE

Waterproofing grade

IP65

Working water pressure

0.06~0.8 MPa

Product dimension

121x132x67mm

Color

Black + Orange

Casing material

ABS

Working temperature

0~50℃, Standard Atmospheric Pressure 

Working water temperature

5~40℃

Working humidity

5%~95% RH, non-condensing

Working altitude

Below 2,000 m

Certification

CE/ FCC /RoHS

Thread Specifications

 

 Model

SWV-ZF2E

SWV-ZF2U

Standard

British Standard Pipe

National Hose

Thread designation

G3/4-14

NH3/4-11.5

Nominal size

3/4”

3/4”

Port diameter

Inner: 18mm

Outer: 26mm

Inner: 18mm

Outer: 26mm

Thread type
width="100"
 width="100"

Recommended for use in

UK, Europe, or most countries or regions 

North America
Installation

First, wrap the thread seal tape around the thread of the faucet, then screw the nut of the water inlet of the equipment onto the faucet. After testing that there is no leakage, finally connect the hose to the water outlet of the equipment (if the water outlet leaks, please wrap thread seal tape around the thread of the water outlet).

ⓘ It is recommended to install vertically as horizontal installation may increase the error in flow rate measurement.
ⓘ In low-temperature environments (below 3–5°C), to prevent residual water from freezing and causing the pipe to crack, be sure to drain all remaining water, remove the device, and store it indoors. 
Communication Distance

The maximum communication distance of this device is 130 m (open space).

Battery Replacement
 Loosen the screw, then open the battery cover
Install four AA batteries, paying attention to the correct polarity

Close the battery cover and tighten the battery compartment screw

ⓘ When replacing the battery, please use high-quality batteries of the same model and specification. Do not mix batteries of different brands, capacities, or new and old batteries, to ensure optimal battery life and stable performance.
Factory Reset
  1. Remove the device from the App on the device settings page.
  2. Press and hold the device button for 10 seconds until the indicator light flashes rapidly, then release to restore factory settings.

Both methods will restore the device to factory settings.

Add Device
Download the eWeLink App 

Please download the “eWeLink” App from Google Play Store or Apple App Store.

Power On the Device

Loosen the screw, then open the battery cover

Install four AA batteries, paying attention to the correct polarity

Install the battery cover and tighten the battery compartment screw

When the device is powered on for the first time, it will automatically enter pairing mode, and the LED indicator will flash slowly in green

ⓘ If pairing is not completed within 3 minutes, the device will exit pairing mode.
To re-enter pairing mode, press and hold the device button for 5 seconds until the LED indicator flashes slowly again.
Add Device
Method 1: Zigbee Pairing(Suggested)

① Add SONOFF Zigbee gateway

Matched Gateways

Recommended SONOFF gateway models:

ZBBridge-P, ZBBridge-U, NSPanel Pro, iHost

Other compatible SONOFF gateway models:

ZBDongle-P, ZBDongle-E, ZBDongle-M, ZBDongle Plus MG24, ZBDongle Lite MG21
ⓘ Before adding the device, please ensure that the gateway firmware is updated to the latest version.

② Add device

Enter “Scan”

Scan the QR code on the device

Select “Zigbee Pairing”

(If the device exits pairing mode)

Long press the button for 5 seconds

Check the LED indicator flashing status (slow flash)

Select a Zigbee gateway

Wait until the addition is done

Method 2: BLE Pairing

Enter “Scan”

Scan the QR code on the device

Select “BLE Pairing”

(If the device exits pairing mode)

Long press the button for 5 seconds

Check the LED indicator flashing status (slow flash)

Tap “Next”

Choose the device and tap “connect”

ⓘ When connected to the Zigbee gateway, the eWeLink App provides a more complete experience, including remote access, smart scenes, and push notifications.
ⓘ Without a Zigbee gateway, the device can connect directly to a mobile phone, and the eWeLink App supports basic functions such as schedule settings.