# SONOFF SNZB-04PR2 Zigbee Door and Window Sensor

# SONOFF SNZB-04PR2 SenseGuard DW Gen2 Zigbee Door/Window Sensor Active Security With Tamper Alerts Matter Bridge Via Apple Home

Keeping your home secure often feels challenging when standard security devices fail to alert you instantly to forced entries or unauthorized tampering. Traditional sensors lack advanced smart home integrations and reliable local monitoring, leaving your property vulnerable. The SONOFF SNZB-04PR2 SenseGuard DW Gen2 Zigbee Door/Window Sensor bridges this gap by delivering active security, instant tamper alerts, and seamless smart home automation capabilities directly to your ecosystem.

Designed for modern smart homes, this advanced sensor utilizes reliable Zigbee communication and supports Matter integration through compatible bridges like the ZBBridge-U, iHost, or Cube OS with a SONOFF Zigbee Dongle. Powered by two LR03 AAA batteries, it features a slim, compact profile with flexible installation options to fit a wide variety of doors and windows securely. When an intrusion or forced opening is detected, the sensor immediately triggers home defense automations, activating security cameras and alarms.

### Key Features and Benefits

-   **Active Security & Tamper Alerts:** Instantly detects forced entries and alerts you via the app if the device is tampered with.
-   **Flexible Installation:** Features a detection range of 30mm for horizontal magnet placement and 15mm for vertical installations.
-   **Energy Saving Automation:** Connects door and window status to household thermostats to automatically stop heating or cooling when windows remain open.
-   **Matter Bridge Compatibility:** Integrates smoothly with platforms like Apple Home via supported gateways including ZBBridge-U and iHost.
-   **Reliable Zigbee Protocol:** Operates efficiently on IEEE 802.15.4 wireless standards with a robust working temperature range of -10℃ to 60℃.

### Smart Use Cases

Enhance everyday living by placing the sensor on exterior entryways to activate multi-device home defense systems during unexpected openings. Alternatively, attach it to household refrigerators, cabinets, or pet doors to monitor unusual activity throughout your living space.

### Frequently Asked Questions

**Q: Does this door and window sensor require a gateway to operate?**  
A: Yes, a Zigbee gateway is required to connect and utilize the sensor effectively within your smart home network.

**Q: How does the sensor help with household energy savings?**  
A: By monitoring whether windows or doors are left open, you can set up smart triggers that automatically turn off connected thermostats or air conditioners to prevent energy waste.

Upgrade your household protection and energy efficiency today with the SONOFF SenseGuard DW Gen2 Zigbee Door/Window Sensor, and enjoy smarter, more responsive home automation.

## Details

- **Price:** 33.24 EUR - 46.5 EUR
- **Vendor:** Tidesmit
- **Type:** Smart Door Sensor
- **Tags:** smart door handles

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| SNZB-04PR2 (1 Pack) / China Mainland | 33.24 EUR | In stock |
| SNZB-04PR2 (4 Pack) / China Mainland | 46.50 EUR | In stock |

## Images

- Slim white Zigbee door/window sensor with compact built-in magnet, wall-mounted
- Zigbee door/window sensor alert graphic showing intrusion detected and protection activated
- Door/window sensor tamper status displayed on smartphone app screen
- Door/window sensor app interface showing open and close status indicators
- Door/window sensor installation guide with magnet mounting and detachable magnet design
- Slim door/window sensor size diagram showing 13.5mm thickness and battery life
- Slim white Zigbee door/window sensor with separate magnet piece for mounting
- Door/window sensor app monitoring tiles for tamper detection, Zigbee 3.0, and battery
- Slim white door/window sensor size diagram held by hand, 13.5mm thickness and range
- Door/window sensor installation options showing detection range and vertical magnet mounting

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> Source: [Tidesmit](https://tidesmit.com/products/sonoff-snzb-04pr2-zigbee-door-window-sensor)
> Updated: 2026-08-26