🏃 SONOFF SNZB-03P — Zigbee Motion Sensor (PIR, 3-Year Battery, Smart Lighting)
Lights on when you walk in, off when you leave. The SONOFF SNZB-03P is a Zigbee 3.0 PIR motion sensor with a fast 5-second detection response and 3-year battery life (CR2477). Detects movement up to 6 metres with a 110° detection angle. Trigger lights, alarms, cameras, and smart scenes automatically. Battery powered — mount anywhere with the included 3M tape or bracket. Works with eWeLink, Alexa, Google Home, and Home Assistant. MPN: SNZB-03P.
Motion or Presence? Choose your detection type:
⚡ Key Features
- 5-Second Motion Response — PIR sensor detects movement within 5 seconds and triggers your smart scene instantly; lights turn on the moment you enter a room
- 6 m Range / 110° Angle — covers a wide area from a single mounting point; ideal for hallways, rooms, staircases, and driveways
- 3-Year Battery Life — powered by a single CR2477 coin cell (included); low-battery alert in the eWeLink app
- Smart Scene Automations — "Motion detected → turn on lights", "No motion for 5 minutes → turn off lights", "Motion after 10 PM → send security alert"
- Local Zigbee Scenes — even if your internet goes down, Zigbee-based automations (e.g., motion → lights) continue working locally via your hub
- Adjustable Sensitivity — set detection sensitivity in the eWeLink app to reduce false triggers from pets or curtains
- Flexible Mounting — 3M adhesive tape, screw mount, or magnetic bracket; mount on walls, ceilings, or shelves at any angle
- Zigbee 3.0 — low-power, reliable mesh networking; battery lasts years, not months
- Home Assistant — supported in ZHA and Zigbee2MQTT; exposes occupancy, battery, and illuminance (lux) entities
🏠 Perfect For
Automatic Hallway Lights
Mount in the hallway. Walk past → lights on. Leave → lights off after 2 minutes. No more fumbling for switches in the dark. Pair with any Zigbee smart switch.
Security Alerts
"Motion detected in garage after 11 PM → push notification + camera recording." Combine with SNZB-04P door sensors for a complete Zigbee security zone.
Bathroom Extractor Fan
Motion detected → turn on extractor fan and light. No motion for 10 minutes → turn both off. Hands-free bathroom automation.
Office Energy Saving
No motion in the meeting room for 15 minutes → turn off lights and aircon. Reduce wasted energy in unoccupied rooms automatically.
🔄 Motion vs Presence Comparison
| Feature | SNZB-03P (This Product) | SNZB-06P |
|---|---|---|
| Detection Type | PIR (movement only) | 5.8 GHz Radar (movement + stillness) |
| Detects Stationary Person? | No — must be moving | Yes — detects breathing/micro-movements |
| Response Time | ~5 seconds | ~1 second |
| Range | 6 m / 110° | 4 m / 110° |
| Light Sensor | Yes (lux) | Yes (lux) |
| Power | Battery (CR2477, 3 years) | USB-C (mains powered) |
| Best For | Hallways, staircases, security, pass-through areas | Living rooms, offices, bathrooms — anywhere you sit still |
📡 Compatible Zigbee Hubs
The SNZB-03P 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 devices via eWeLink. The easiest way to get started with Zigbee sensors.
View Product →SONOFF NSPanel Pro
Wall-mounted touchscreen with built-in Zigbee hub, intercom, and dashboard. Manage all your sensors from one screen.
View Product →SONOFF ZBDongle-Max
Long-range USB Zigbee coordinator with external antenna and 2.5× range. Ideal for large homes or outdoor Zigbee networks with Home Assistant.
View Product →SONOFF ZBDongle-LMG21
Compact USB Zigbee coordinator for Home Assistant. Full local control via ZHA or Zigbee2MQTT. Plug into a Raspberry Pi or PC.
View Product →📋 Technical Specifications
| Product | SONOFF Zigbee PIR Motion Sensor |
| MPN / Model | SNZB-03P |
| Detection Type | PIR (Passive Infrared) — movement only |
| Detection Range | 6 metres |
| Detection Angle | 110° |
| Response Time | ~5 seconds |
| Light Sensor | Yes — ambient lux measurement |
| Battery | CR2477 (3V) — up to 3 years (included) |
| Protocol | Zigbee 3.0 |
| Hub Required | Yes — NSPanel Pro, ZB Bridge-P, iHost, ZBDongle-E/P/Max/LMG21, Echo Plus 2nd |
| Home Assistant | ZHA · Zigbee2MQTT — occupancy, battery, illuminance |
| Voice Control | Amazon Alexa · Google Assistant (via hub) |
| App | eWeLink (iOS & Android) |
| Mounting | 3M tape · Screw mount · Magnetic bracket |
| Operating Temp | -10°C to +60°C |
| Warranty | 1 Year Manufacturer Warranty |
❓ Frequently Asked Questions
Will it detect my pets?
Will the lights stay on if I'm sitting still?
Does it work outdoors?
Can I use it for security?
Does it measure light level?
🤝 Need Help? We're Here for You!
Visit Us
8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709
Automatic Lights. Smart Security.
3-year battery. 5-second response. Zero wiring.