Sonoff Zigbee Window & Door Sensor SNZB-04P

Know the Moment a Door or Window Opens

The Sonoff SNZB-04P Zigbee Window & Door Sensor gives you instant awareness of every entry point in your home. Whether it's a front door, back gate, or window, you'll get real-time alerts and can trigger powerful automations the moment something opens or closes.

• Detects open/close state of doors, windows, cabinets, and gates
• Zigbee connectivity for fast, local, cloud-free control
• Integrates with Home Assistant, Zigbee2MQTT, ZHA, and eWeLink
• Instant push notifications when triggered
• Compact, discreet design with strong magnetic mount
• Long battery life — runs on a standard CR2032 coin cell
• Trigger lights, alarms, or other automations on open/close events

Simple to install, powerful in action — the essential sensor for any smart home security setup.