ความปลอดภัย, ล็อค, นิ้ว, แตะ, หน้าจอสัมผัส, อัตโนมัติ, WLAN, บ้านอัจฉริยะ, บ้าน, ควบคุม, สวิตซ์
Public Domain
ภาพถ่ายปลอดค่าลิขสิทธิ์ที่เกี่ยวข้อง
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