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The SONOFF SenseGuard DW Gen2 (SNZB-04PR2) is a next-generation Zigbee smart door and window sensor designed to provide advanced home security, automation, and intrusion detection. Featuring tamper alerts, versatile installation options, and an upgraded wide-gap detection range, the SNZB-04PR2 is ideal for securing doors, windows, gates, drawers, cabinets, and more. (SONOFF Official Website)
Powered by Zigbee 3.0 technology, the sensor delivers reliable low-power communication with compatible Zigbee hubs while enabling smart automation scenes such as triggering alarms, turning on lights, activating cameras, or sending instant mobile notifications when doors or windows are opened.
Features:
Zigbee 3.0 Smart Door & Window Sensor
Instant Open/Close Notifications
Built-in Tamper Detection Alerts
Wide 30mm Detection Distance
Supports Horizontal & Vertical Installation
Detachable Magnet Design
Smart Automation & Scene Triggering
Up to 3-Year Battery Life
Powered by 2 × AAA Batteries
Compact Slim Modern Design
Real-Time Mobile Alerts via eWeLink App
Compatible with Home Assistant & Zigbee2MQTT
Supports Alexa, SmartThings & Matter Bridges
Ideal For:
Home intrusion detection
Smart alarm systems
Window & door monitoring
Garage & gate monitoring
Drawers & cabinets
Fridge or freezer monitoring
Office & retail security
Smart home automation
Compatibility:
Compatible with:
SONOFF ZBBridge Pro & Ultra
Home Assistant
Zigbee2MQTT
SmartThings
Amazon Alexa
Matter-compatible ecosystems via supported bridges
Specifications:
Model: SNZB-04PR2
Wireless Protocol: Zigbee IEEE 802.15.4
Battery: 2 × AAA Batteries
Detection Distance: Up to 30mm
Working Temperature: -10°C to 60°C
Material: PC Housing
Indoor Use Only
Compared to the previous SNZB-04P generation, the Gen2 model offers improved installation flexibility, wider gap tolerance, AAA battery support, and enhanced tamper protection for more reliable long-term smart security applications.
