SONOFF SenseGuard DW Zigbee Door Window Contact Sensor,Open Close Monitoring,Tamper Proof

SenseGuard DW Gen2 is a mini door and window contact sensor designed for versatile installation on various door and window types, supporting both horizontal and vertical mounting. Powered by standard AAA batteries, it ensures cost-effective, long-term use. The SNZB-04PR2 smart magnetic door open sensor features anti-tamper detection, sending instant app alerts, and triggering smart scenes when abnormal removal is detected. Its slim, lightweight design blends seamlessly into any home, enabling smart automation for enhanced home security and everyday comfort.

• Tamper alerts & smart scene triggers for security
• Slim 45.1g design, fits any door/window mounting
• AAA battery lasts 3 years, easy to replace