💧 SONOFF SWV-BSP — Zigbee Smart Water Valve (3/4″ BSP, Battery Powered, Smart Irrigation)
Automate your garden watering in 3 minutes. The SONOFF SWV-BSP is a Zigbee 3.0 smart water valve with a built-in flow sensor, powered by 4 × AA batteries (up to 20 months life). Screw it between your outdoor tap and hose — then control irrigation from your phone with scheduled, volume-based, or cyclic watering modes. Tracks 6 months of water usage history. Works with eWeLink, Alexa, Google Home, and Home Assistant. BSP (British Standard Pipe) 3/4″ thread — the standard used in South Africa. MPN: SWV-BSP.
⚡ Key Features
- 3-Minute Installation — screw onto any 3/4″ BSP outdoor tap, connect your garden hose to the outlet, insert batteries, pair to your hub, done
- Schedule Mode — set daily/weekly watering times with start time and duration; single or repeating cycles
- Capacity Mode (Volume-Based) — set a specific water volume (e.g., 50 litres) and the valve auto-closes when that volume is delivered; no more overwatering
- Cyclic Irrigation — alternating water-on/water-off cycles for slow drip or soak-and-dry schedules
- Built-In Flow Sensor — measures real-time water flow rate (2–3.9 L/min detection range) for accurate volume tracking
- 6-Month Water Usage History — the eWeLink app logs 180 days of water usage and duration data; view daily, weekly, or monthly charts to optimise watering and reduce bills
- Auto Shut-Off (No Water) — if water runs out, the valve automatically closes after 30 minutes to prevent dry running
- IP55 Water Resistant — dust-protected and splash-proof; designed for outdoor tap installations
- Battery Powered (4 × AA) — estimated 20 months battery life at 1 hour watering per day; no mains wiring needed
- Physical Button — press to open/close manually; hold 5 seconds to enter pairing mode
- Zigbee 3.0 (EFR32MG22) — 130 m open-space range; works with eWeLink, Alexa, Google Home
- Home Assistant — supported in ZHA (open/close + flow + battery) and Zigbee2MQTT (full schedule/volume control with firmware 1.0.3+)
- Thread Seal Tape Included — comes with a roll of PTFE tape for leak-free installation
🏠 Perfect For
Garden & Lawn Irrigation
Screw onto your garden tap. Schedule watering every morning at 6 AM for 20 minutes. Or set volume-based watering to deliver exactly 100 litres per session.
Vegetable Patches & Raised Beds
Use cyclic irrigation (soak-and-dry) for vegetables and herbs. Alternate between watering and rest periods for optimal root absorption.
Pool Top-Up
Set a volume limit to automatically top up your pool with a specific amount of water. The valve closes when the target volume is reached — no forgetting to turn off the hose.
Smart Home Automation
Link with SONOFF SNZB-05P water leak sensor to auto-close water supply on leak detection. Pair with soil moisture sensors for condition-based irrigation.
🔗 Related Smart Water Products
SONOFF SNZB-05P Water Leak Sensor
Zigbee water leak sensor with 0.5 mm detection sensitivity. Pair with this valve for auto-shutoff on leak detection. R220.
View Product →
WLDC200 Detection Cable
2 m water detection cable for SNZB-05P. Detect leaks along entire pipe runs. Daisy-chain for unlimited length. R189.
View Product →
📡 Compatible Zigbee Hubs
The SWV-BSP requires a Zigbee 3.0 hub. Here are the hubs we stock:
SONOFF ZB Bridge-P
Affordable Zigbee-to-WiFi gateway. Supports up to 128 Zigbee devices via eWeLink. The easiest way to get started.
View Product →
SONOFF NSPanel Pro
Wall-mounted touchscreen with built-in Zigbee hub, intercom, and dashboard. Manage all your Zigbee devices from one screen.
View Product →
SONOFF ZB Bridge Ultra
Advanced Zigbee gateway with Matter bridge support. Connect Zigbee devices to Apple Home, Google Home, and more.
View Product →
SONOFF ZBDongle-E
USB Zigbee coordinator for Home Assistant (ZHA / Zigbee2MQTT). Full local control without cloud. Plug into a Raspberry Pi or PC.
View Product →
📋 Technical Specifications
| Product | SONOFF Zigbee Smart Water Valve |
| MPN / Model | SWV-BSP |
| Type | Zigbee 3.0 Smart Irrigation Valve |
| Thread | 3/4″ BSP (British Standard Pipe — G3/4-14) |
| Inlet | 3/4″ female BSP |
| Outlet | 3/4″ male BSP |
| Flow Sensor | Built-in · Detection range: 2–3.9 L/min |
| Irrigation Modes | Schedule (timed) · Capacity (volume) · Cyclic · Single |
| Water Usage Logging | 180 days (6 months) via eWeLink app |
| Battery | 4 × AA (not included) — est. 20 months at 1 hr/day |
| IP Rating | IP55 (dust-protected, splash-proof) |
| Zigbee | Zigbee 3.0 (EFR32MG22) · 130 m open-space range |
| Hub Required | Yes — NSPanel Pro, ZB Bridge-P, ZB Bridge-U, iHost, ZBDongle-E/P, Echo Plus 2nd |
| Home Assistant | ZHA (valve + flow + battery) · Zigbee2MQTT (full schedule/volume control with FW 1.0.3+) |
| Voice Control | Amazon Alexa · Google Assistant |
| App | eWeLink (iOS & Android) |
| Included | 1 × SWV-BSP valve · 1 × Thread seal tape (PTFE) · 1 × User manual · 1 × Water filter (built-in) |
| Installation | Vertical recommended (horizontal may affect flow accuracy) |
| Warranty | 1 Year Manufacturer Warranty |
❓ Frequently Asked Questions
Is this the right thread for South African taps?
Do I need to connect it to mains power?
Can I set it to water a specific amount of litres?
Does it work with Home Assistant?
Should I install it vertically or horizontally?
What happens if the water supply runs out while it’s open?
Can I pair it with a leak sensor for auto-shutoff?
🤝 Need Help? We’re Here for You!
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8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709
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