Sonoff Zigbee Door/Window Sensor

Batten down the hatches! Keep your doors, windows, and biscuit cupboard safe and secure.

The Sonoff Zigbee Door/Window Sensor is a low cost solution for monitoring your doors and windows within a smart home setup. Use it to easily check that you haven't left a downstairs window open at night or to automatically turn on the bathroom light when you open the door.

It comes with a battery pre-installed that will last for over five years allowing for minimal maintenance. Installation couldn't be simpler, just use the included 3M adhesive tape to fix the sensor and magnet modules to the door/window and the frame.

Security and savings

If you live in a household where the kids forget to close the garage door after a bike ride or your partner leaves windows open while the central heating struggles to keep up, then these handy little sensors are just what you need.

Within your home automation setup you can create rules for what happens when a door or window is opened or closed or if it is left open for a specific period of time. These rules can trigger notifications or events such as turning a light on or off. You can also easily check the state of all of your monitored doors and windows at a glance.

To use Zigbee devices you'll either need a Zigbee compatible USB dongle connected to an always-on computer (a Raspberry Pi is ideal) or a dedicated smart home solution like the excellent Home Assistant Green (+ Zigbee dongle) or Sonoff iHost.

Why we love it

The Sonoff Zigbee range provides great functionality at an excellent price point. They are high quality products that are easy to set up and deliver reliably.

• Over five years of battery life: Set it and forget it - just replace the batteries every half decade or so.
• Long-range performance: Powered by the energy-efficient and secure Zigbee protocol, it offers excellent range while conserving power.
• Know your home at a glance: No more second-guessing if things are locked or secure - it works on doors, windows, drawers, garage doors, blinds, and more.
• Works great with Home Assistant: Our favourite open-source smart home software.
• Easy setup: Installation is a breeze with the included 3M adhesive - stick it up in seconds, no tools required.

Tech specs

• Battery: 3V CR2477 (included, lasts for over five years)
• Connectivity: Zigbee 3.0
• Environment: -10°C to 60°C (5 to 95% relative humidity)
• Weight: 33g
• Installation: 3M adhesive tape (suitable for most doors and windows)
• Installation gap: < 20mm
• Dimensions:
  • Sensor: 50.5×32×21.9 mm
  • Magnet: 27×12×12.4 mm

Resources

Check out the SNZB-04P knowledge centre for technical details, compatibility, troubleshooting and setup tips.