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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Frost protection: automatic heating at low temperatures
easy installation
3–9 m (default 6 m)
Radio sensitivity: -98 dBm
External antenna with up to 3 dBi gain for improved signal strength
Sonoff SNZB-04PR2 - SenseGuard DW Gen2 Zigbee Door and Window Sensor (Zigbee2Mqtt, Home Assistant, Ewelink) Frost protection: automatic heating atSONOFF SenseGuard DW Gen2 Zigbee Door Window Sensor (SNZB 04PR2) The SONOFF SenseGuard DW Gen2 is a Zigbee door and window sensor designed to improve home security while enhancing comfort and energy efficiency. With smart detection of opening, closing, and tampering, it can instantly trigger alerts and advanced automations. Compact, lightweight, and discreet, it installs easily on all types of doors and windows, including narrow frames or wide gaps.
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