✅ PIR Infrared Human Motion Detection: Accurately identify human movement to reduce false alarms
✅ WiFi Remote Alert: Receive instant mobile notification whenever intrusion is detected
✅ 433M Wireless Expansion: Support pairing with 433MHz sensors to build your custom alarm system
✅ Dual Installation Options: Freely place on desktop or mount on wall for flexible layout
✅ Built-in Local Alarm: On-site audible warning to deter intruders immediately
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